Categories
Design

How to see what your mac is loading at boot with knockknock

Justin Pot has been writing about technology for over a decade, with work appearing in Digital Trends, The Next Web, Lifehacker, MakeUseOf, and the Zapier Blog. He also runs the Hillsboro Signal, a volunteer-driven local news outlet he founded. Read more.

How to see what your mac is loading at boot with knockknock

If you’re a Mac power user, you probably install a lot of software, only to delete it later. But how many of those applications, drivers, and customizations tools are still trying to do things when your Mac starts up?

If you’re like me, you have no idea, which is why it’s good that KnockKnock exists. This free program gives you an overview of all persistent software on your Mac, basically everything that starts up when your Mac does. The information goes well beyond what you can see in System Preferences, and is presented clearly in a single user interface. It’s useful for spotting malware, and also for doing some spring cleaning.

KnockKnock is from Objective See, a trusted member of the macOS security community behind a variety of security tools, including one we recommended for finding out when your Mac’s camera is active. Installing is simple: just download the ZIP file, click it to unzip it, and then drag the icon to your Applications folder.

How to see what your mac is loading at boot with knockknock

Launch KnockKnock and you’ll see a simple user interface. Click the “Start Scan” button to begin.

You will be asked for your password.

How to see what your mac is loading at boot with knockknock

The scan itself shouldn’t take more than a minute or two.

How to see what your mac is loading at boot with knockknock

When the scan is done, you can start browsing the results, which are broken down into sections.

How to see what your mac is loading at boot with knockknock

For example, there’s the macOS extensions section, which includes tools that give applications the ability to integrate with Finder, Notifications Center, and more. You’ll see the name of the extension and its location in your file system, alongside information from VirusTotal.

This means that, at a glance, you’ll know what something is, where it lives on your computer, and if it’s likely to be malware. You’ll also see buttons for pulling up more information, and opening a Finder window to the file’s location.

It’s a lot more information than you get from System Preferences, and you can use this same approach to see your macOS login items.

How to see what your mac is loading at boot with knockknock

But we’re just getting started. What really makes KnockKnock useful are the more advanced categories, like “Kernel Extensions.”

How to see what your mac is loading at boot with knockknock

Kernel extensions are software that interfaces with the operating system at the kernel level, and it’s not a good idea to leave anything here unless it’s necessary.

The locks beside the listings are important to note. To quickly break things down:

  • A green lock means something is signed by Apple itself. You’ll only see these if you specifically include OS items in the preferences.
  • A black closed lock means something is third party, but properly signed.
  • An orange open lock means something is unsigned.

For example, in the above screenshot, you can see that my Wireless360Controller extension (an XBox 360 driver) is unsigned, meaning I probably shouldn’t keep it around. Happily I can locate the driver in the Finder and delete the kernel extension.

It goes without saying that deleting kernel extensions isn’t a good idea if you don’t know what you’re doing, because you could break things. But for informed Mac power users, KnockKnock gives you a way to check what your Mac is running at boot.

This is a great tool for anyone who wants to learn more about the software running on their Mac, and also gives you one more way to stay on top of the growing Mac malware threat.

Contents

How to see what your mac is loading at boot with knockknock

If you are an advanced Mac user, probably install a lot of software, just to delete it later. But, How many of those apps, Drivers and customization tools keep trying to do things when the Mac starts?

If you are like me, you have no idea, This is why it is good that TOC Toc exists. This free program gives you an overview of all persistent software on your Mac, just everything that starts when your Mac does. Information goes far beyond what you can see in System Preferences and is clearly presented in a single user interface. It is useful for detecting malware and also for spring cleaning.

RELATED: How to receive a notification every time an application is launched with your Mac’s webcam

KnockKnock is from Objective View, a trusted member of the macOS security community behind a range of security tools, including one we suggest to know when your Mac’s camera is active. Installation is simple: just download the ZIP file, click on it to unzip it and then drag the icon to your Applications folder.

How to see what your mac is loading at boot with knockknock

Launch KnockKnock and you will see a simple user interface. Click the button “ Iniciar escaneo ” to start.

You will be asked for your password.

How to see what your mac is loading at boot with knockknock

The scan itself shouldn’t take more than a minute or two.

How to see what your mac is loading at boot with knockknock

When the scan is finished, you can start examining the results, which are divided into sections.

How to see what your mac is loading at boot with knockknock

RELATED: How to enable or disable extensions to customize your Mac

As an example, there is the macOS extensions section, which includes tools that give applications the ability to integrate with Finder, Notification Center and more. You will see the name of the extension and its location on your file system, along with information from VirusTotal.

This means that, take a look, will know what something is, where it lives on your computer and if it is likely to be malware. You will also see buttons to get more information and open a Finder window to the location of the file.

RELATED: Mac OS X: change which apps start automatically upon login

It’s a lot more information than you get from System Preferences, and you can use this same approach to view your macOS login items.

How to see what your mac is loading at boot with knockknock

But we are just beginning. What really makes KnockKnock useful are the more advanced categories, What “ Extensiones de kernel ”.

How to see what your mac is loading at boot with knockknock

Kernel extensions are software that interacts with the operating system at the kernel level, and it is not a good idea to leave anything here unless it is necessary.

It is essential to pay attention to the locks next to the listings. To break things down quickly:

  • A green padlock means something is signed by Apple. You will only see them if you specifically include operating system items in the preferences.
  • A closed black padlock means that something is from a third party, but duly signed.
  • An open orange padlock means that something is not signed.

As an example, in the screenshot above, you can see that my Wireless360Controller extension (an XBox controller 360) not signed, which means you probably shouldn’t keep it. Fortunately, I can locate the driver in Finder and remove the kernel extension.

Needless to say, removing kernel extensions is not a good idea if you don’t know what you are doing, because it could break things. But for the informed advanced Mac users, KnockKnock offers you a way to check what your Mac is running on startup.

This is a great tool for anyone who wants to learn more about the software that runs on their Mac., plus it gives you one more way to stay on top of the growing Mac malware threat.

How to see what your mac is loading at boot with knockknock

Если вы опытный пользователь Mac, вы, вероятно, устанавливаете много программного обеспечения, чтобы удалить его позже. Но сколько из этих приложений, драйверов и инструментов настройки все еще пытаются делать что-то при запуске вашего Mac?

Если вы похожи на меня, то понятия не имеете, поэтому хорошо, что Тук-тук существует. Эта бесплатная программа дает вам обзор всего постоянного программного обеспечения на вашем Mac, в основном всего, что запускается, когда ваш Mac запускается. Информация выходит далеко за рамки того, что вы видите в Системных настройках, и четко представлена ​​в едином пользовательском интерфейсе. Это полезно для обнаружения вредоносных программ, а также для генеральной уборки.

KnockKnock от Цель Видеть , доверенный член сообщества безопасности macOS, стоящий за множеством инструментов безопасности, в том числе рекомендованным для узнать, когда активна камера вашего Mac . Установка проста: просто загрузите ZIP-файл, щелкните его, чтобы распаковать, а затем перетащите значок в папку «Приложения».

How to see what your mac is loading at boot with knockknock

Запустите KnockKnock, и вы увидите простой пользовательский интерфейс. Чтобы начать, нажмите кнопку «Начать сканирование».

Вам будет предложено ввести пароль.

How to see what your mac is loading at boot with knockknock

Само сканирование не должно занимать больше минуты или двух.

How to see what your mac is loading at boot with knockknock

Когда сканирование будет завершено, вы можете начать просматривать результаты, которые разбиты на разделы.

How to see what your mac is loading at boot with knockknock

Например, есть расширения macOS раздел, который включает инструменты, позволяющие приложениям интегрироваться с Finder, Центром уведомлений и т. д. Вы увидите название расширения и его расположение в файловой системе, а также информацию из VirusTotal .

Это означает, что с первого взгляда вы узнаете, что такое что-то, где оно находится на вашем компьютере и может ли это быть вредоносное ПО. Вы также увидите кнопки для получения дополнительной информации и открытия окна Finder с указанием местоположения файла.

СВЯЗАННЫЕ С: Mac OS X: изменение приложений, запускаемых автоматически при входе в систему

Это намного больше информации, чем вы получаете в системных настройках, и вы можете использовать тот же подход, чтобы увидеть ваши элементы входа в macOS .

How to see what your mac is loading at boot with knockknock

Но мы только начали. Что действительно делает KnockKnock полезным, так это более продвинутые категории, такие как «Расширения ядра».

How to see what your mac is loading at boot with knockknock

Расширения ядра – это программное обеспечение, которое взаимодействует с операционной системой на уровне ядра, и не рекомендуется оставлять здесь что-либо, если в этом нет необходимости.

Важно отметить замки рядом с списками. Чтобы быстро разбить вещи:

  • Зеленый замок означает, что что-то подписано самой Apple. Вы увидите их только в том случае, если вы специально включите элементы ОС в настройки.
  • Черный закрытый замок означает, что что-то принадлежит третьей стороне, но правильно подписано.
  • Оранжевый открытый замок означает, что что-то не подписано.

Например, на приведенном выше снимке экрана вы можете видеть, что мое расширение Wireless360Controller (драйвер XBox 360) не подписано, что означает, что мне, вероятно, не следует его хранить. К счастью, я могу найти драйвер в Finder и удалить расширение ядра.

Само собой разумеется, что удаление расширений ядра – не лучшая идея, если вы не знаете, что делаете, потому что вы можете что-то сломать. Но для опытных пользователей Mac KnockKnock дает возможность проверить, что работает на вашем Mac при загрузке.

Это отличный инструмент для всех, кто хочет узнать больше о программном обеспечении, работающем на их Mac, а также дает вам еще один способ оставаться на вершине растущая угроза вредоносного ПО для Mac .

How To See What Your Mac Is Loading At Boot With KnockKnock

Если вы являетесь пользователем Mac power, вы, вероятно, установите много программного обеспечения, только чтобы удалить его позже. Но сколько из этих приложений, драйверов и инструментов настройки все еще пытаются что-то сделать, когда ваш Mac запускается?

Если вы любите меня, вы понятия не имеете, поэтому хорошо, чтоСтукСуществует. Эта бесплатная программа дает вам обзор всего постоянного программного обеспечения на вашем Mac, в основном все, что запускается, когда ваш Mac делает. Информация выходит далеко за рамки того, что вы можете видеть в System Preferences, и четко представлена в одном пользовательском интерфейсе. Его полезно для обнаружения вредоносных программ, а также для весенней уборки.

KnockKnock изЦель См., Доверенный член сообщества безопасности macOS, который поддерживает различные инструменты безопасности, в том числе тот, который мы рекомендовали дляУзнать, когда ваша камера Mac активна. Установка проста: просто загрузите файл ZIP, щелкните его, чтобы распаковать, а затем перетащите значок в папку Applications.

Запуск KnockKnock и вы увидите простой пользовательский интерфейс. Нажмите кнопку Start Scan, чтобы начать.

Вам будет предложено ваш пароль.

Само сканирование не должно занимать больше минуты или двух.

Когда сканирование будет выполнено, вы можете начать просмотр результатов, которые разбиты на разделы.

Например, theres theРасширения macOSРаздел, который включает инструменты, которые дают приложениям возможность интегрироваться с Finder, Центр уведомлений и многое другое. Вы увидите название расширения и его местоположение в вашей файловой системе, а также информацию изVirusTotal.

Это означает, что, с первого взгляда, вы будете знать, что-то такое, где он живет на вашем компьютере, и если это, вероятно, вредоносное ПО. Вы также увидите кнопки для получения дополнительной информации и открытия окна Finder в местоположение файлов.

Его гораздо больше информации, чем вы получаете от System Preferences, и вы можете использовать этот же подход, чтобы увидетьВаши элементы входа в macOS.

Но только начали. Что действительно делает KnockKnock полезным, так это более продвинутые категории, такие как Kernel Extensions.

Расширения ядра-это программное обеспечение, которое взаимодействует с операционной системой на уровне ядра, и не стоит ничего оставлять здесь, если в этом нет необходимости.

Важно отметить замки рядом с объявлениями. Чтобы быстро сломать вещи:

  • Зеленый замок означает, что-то подписано самой Apple. Вы увидите их, только если вы специально включите элементы ОС в предпочтения.
  • Черный закрытый замок означает, что-то является третьей стороной, но правильно подписано.
  • Оранжевый открытый замок означает, что-то не подписано.

Например, на скриншоте выше вы можете увидеть, что мое расширение Wireless360Controller (драйвер XBox 360) не подписано, что означает, что я, вероятно, не должен держать его. К счастью, я могу найти драйвер в Finder и удалить расширение ядра.

Это само собой разумеется, что удаление расширений ядра не является хорошей идеей, если вы не знаете, что вы делаете, потому что вы могли бы сломать вещи. Но для информированных пользователей Mac KnockKnock дает вам возможность проверить, что ваш Mac работает при загрузке.

Это отличный инструмент для тех, кто хочет узнать больше о программном обеспечении, работающемся на их Mac, а также дает вам еще один способ оставаться на вершинеРастущая угроза вредоносного ПО Mac.

How to see what your mac is loading at boot with knockknock

If you love trying out new applications, then it’s easy to lose track of the programs that launch automatically, every single time you boot up your Mac.

Having a tonne of programs running in the background is bad news for performance, so identifying apps that don’t need to launch at startup is one of the easiest ways to boost your Mac’s performance – and it can even help you identify potential malware!

The majority of malware executes automatically as soon as you log into your user account, so reviewing the software that launches at startup can help you zero in on any malicious software that’s found its way onto your Mac.

While your Mac’s System Preferences does list the applications that launch at startup, it isn’t just applications that you need to worry about! In this article, we’re going to dig a bit deeper and uncover everything that launches every single time you boot up your Mac, including scripts, cron jobs, kernel extensions and browser extensions.

KnockKnock…who’s there?

KnockKnock is an application that scans locations where persistent software and malware is commonly installed. KnockKnock then displays detailed information about all the items it discovers in these locations, that are set to launch at startup. Armed with this data, you can decide whether an item really does need to launch automatically, and whether it may actually be malware.

Note that by default, KnockKnock filters out signed Apple and white-listed items, so these won’t appear in your KnockKnock results.

To perform a scan:

  • Head over to the Objective-C website and download the latest version of KnockKnock. Although you can download KnockKnock for free, if you find this app useful then you should consider donating to the developer.
  • Unzip and launch KnockKnock.
  • Click ‘Start Scan.’
  • After a few moments, KnockKnock will return your results, broken down into sections.

How to see what your mac is loading at boot with knockknock

Work your way through these sections, and you’ll see the following information for each item that KnockKnock has detected:

  • The item’s name.
  • A colour-coded lock. Green means that this item is signed by Apple; black means it’s signed by a third party; and an orange, open lock indicates that this item is unsigned.
  • The full file path. You can jump straight to this location in a new Finder window, by clicking the ‘Show’ button.
  • A ‘VirusTotal’ score.VirusTotal is an online malware detection service that provides aggregated data based on the output of various antivirus engines, website scanners, URL and file analysis tools, plus user contributions such as comments and votes. If the item is associated with known malware, then both its name and VirusTotal score will be highlighted red.

To view even more information about the item, click its accompanying ‘info’ button, which launches a popup containing the following information:

  • Hash. This is a string of characters that uniquely identifies this file. Some developers and organisations publish an official list of hashes for their software. Modifying a file in any way will change its hash, so you can check whether a file has become corrupted or been maliciously tampered with, by comparing its hash to the list of official hashes. For example, if you downloaded some software from a third party website, and the third party modified the software to include adware, then its hash will be different to the official list of hashes.
  • Size. How much space this item is taking up.
  • Time. When this item was created, and when it was modified last.
  • List. Wherever possible, KnockKnock will display an item’s plist, which is a text or binary document containing the item’s properties and settings.
  • Signed. Whether the application is signed, and the individual or organisation who this certificate is associated with, if available. Note that just because an application is unsigned, doesn’t automatically mean it’s untrustworthy.

When reviewing your results, just be aware that KnockKnock will list all items that are set to launch at startup, except for signed Apple and white-listed items. It’s highly likely that your KnockKnock results will include lots of legitimate software that should be launching at startup, so don’t panic if KnockKnock returns a long list of software!

Before you go

After spending over 20 years working with Macs, both old and new, theres a tool I think would be useful to every Mac owner who is experiencing performance issues.

CleanMyMac is highest rated all-round cleaning app for the Mac, it can quickly diagnose and solve a whole plethora of common (but sometimes tedious to fix) issues at the click of a button. It also just happens to resolve many of the issues covered in the speed up section of this site, so Download CleanMyMac to get your Mac back up to speed today.

Your Mac shows an Apple logo when it finds your local startup disk, then shows a progress bar as the macOS startup or installation process continues.

How to see what your mac is loading at boot with knockknock

Your Mac shows an Apple logo when it finds your startup disk, which is usually the disk built into your Mac. As startup continues, you should see a progress bar, with or without the Apple logo. This screen might alternate with a blank screen several times.

If you’re installing macOS, the Apple logo or progress bar might persist for much longer than usual. As installation continues, the progress bar might move slowly and pause for long periods. That’s why Apple recommends beginning macOS installation in the evening—so that it can complete overnight, if needed.

If your Mac is stuck on this screen

If you think you’ve waited long enough to know that your Mac is stuck on this screen, follow these steps.

  1. Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off. Then turn your Mac back on.
  2. If the issue persists, press and hold the power button until your Mac turns off. Then unplug all accessories from your Mac, including printers, drives, USB hubs, and other nonessential devices. You could have an issue with one or more of those devices or their cables. Then turn your Mac back on.
  3. If the issue persists, once again press and hold the power button until your Mac turns off. Then use Disk Utility to repair your startup disk.
    • If Disk Utility found no errors, reinstall macOS.
    • If Disk Utility found errors and repaired them, restart your Mac. If the issue returns after restarting, reinstall macOS.
  4. If you still need help, please contact Apple Support.

If your Mac doesn’t seem to turn on after you press the power button, follow these steps.

Force your Mac to turn off and back on

Your Mac might be turned on but appear to be turned off, even though it’s connected to AC power and a working display. Follow these steps.

  1. Press and hold the power button on your Mac for at least 10 seconds, then release. If your Mac is turned on, this forces it to turn off.
  2. If you see no change on your Mac, press and release the power button.
  3. If your Mac now turns on but stops at some other screen during startup, follow the steps for when your Mac doesn’t start up all the way.

Revive the firmware, if applicable

If you’re using a Mac with Apple silicon or a Mac with the Apple T2 Security Chip, in rare circumstances the firmware stored in your computer’s memory might need to be revived or restored. To do that, you need these items:

  • Another Mac with macOS Catalina 10.15.6 or later and the latest Apple Configurator app, available free of charge from the App Store.
  • A USB-C to USB-C cable or USB-A to USB-C cable to connect the computers to each other. The cable must support both power and data. Thunderbolt 3 cables aren’t supported.

If you have those items, follow the appropriate steps:

If your Mac still doesn’t turn on, you need help with these instructions, or you don’t have the items you need, please contact Apple Support.

If your Mac is unstable when running in normal mode, one useful test is to start it up in Safe mode. So what do you do if that makes your Mac much more stable, or even solves your problems, but they return when you restart in normal mode?

The big difference between Safe and ordinary modes is that, in Safe mode, OS X only loads essential Apple components, in terms of extensions, startup and login items, and runs a minimum of services. Logically, if blocking all extra components from running makes your Mac behave better, the instability must be caused by one or more of the components which is blocked in Safe mode. The difficulty then rests in identifying those components.

El Capitan and Sierra prevent third-party installers from placing their components in the /System/Library folder, but if your Mac migrated from Yosemite or earlier, old third-party components may well have been migrated into that folder. You should therefore check several folders in /System/Library for such old components. The most probable folders which might be harbouring problems are:

  • /System/Library/Extensions – any dating from before 10 Jan 2015 should be suspect, and almost all should be dated 23 Aug 2015 or later
  • /System/Library/LaunchAgents – these should all start with com.apple., apart from one with org.openbsd.ssh-agent.plist
  • /System/Library/LaunchDaemons – most start with com.apple., but there are quite a few others too; look for obviously third-party files
  • /System/Library/PreferencePanes – these should only be standard Apple panes
  • /System/Library/StartupItems – should be empty.

If you find others, which are associated with old software which you might have had installed many years ago, you should uninstall those old products, or move the suspect components into a folder in your Documents folder. With SIP, what usually happens is that the file is copied, leaving you to remove the original from /System/Library. SIP will prevent you from removing key Apple items, but should still – when you have authenticated as an admin user – allow you to trash third-party components.

Then turn your attention to your main /Library and Home folder

/Library folders, paying particular attention to the following folders there:

  • Library/Extensions – these are all third-party, and should all be under suspicion
  • Library/Internet Plug-Ins – these extend Safari in particular; get rid of the old, and update as many as possible
  • Library/LaunchAgents – these are all third-party, and should all be under suspicion
  • Library/LaunchDaemons – a few are Apple’s, but most are third-party and should be under suspicion
  • Library/PreferencePanes – these are all third-party, and should all be under suspicion
  • Library/StartupItems – should normally be empty
  • Library/Widgets – your main store of Widgets; beware of third-party items here.

Don’t just grab a load of components whose function is unclear and dump them in the Trash: that can do more damage than good, and if you’re unlucky could make your Mac more unstable, or even unusable. The best approach is to move (not remove) those that look to be unnecessary, but be ready to reinstall them if required.

You may also get clues from browsing your logs with Console when things start going wrong. You may then see errors from third-party and other components which relate to software which you used several years ago, for example. Look through your Library folders (and Applications) to see if migration has quietly brought that ancient software along, without your knowing. If you don’t need it, move it out and test to see whether that improves or worsens stability.

One excellent way of discovering what old components are still running on your Mac is to browse them using Objective-See’s excellent KnockKnock. This lists persistently-installed software components such as kernel extensions, and should lead you to their location – which is particularly helpful for those components outside the main Library folders.

If you identify components which you think are still important, but they are more than six months old, locate their support site and look for a more recent update or upgrade there. Although some updates bring their own problems, as a general rule you are better off using the most recent release of a product.

Because Safe mode also blocks a lot of Apple’s components in OS X from running, your problems may result from one of those instead. For example, in Safe mode the best and fastest graphic drivers are often disabled, leaving your Mac running, but rather more slowly than normal. You should not try moving or disabling those components: if they come as part of OS X / macOS, then you should try not to meddle with them at all.

At the end of this, not only should your Mac be much more stable, but your Library folders should be free of the dross which they tend to accumulate over the years, and you may even find that your Mac runs more briskly as a result.

DHS found an issue How to see what your mac is loading at boot with knockknockIs this a false positive? Anybody else with the same message?

I installed BlockBlock. What do you think about it? Do you trust those Security tools?

BlockBlock provides continual protection by monitoring persistence locations. Any new persistent component will trigger a BlockBlock alert, allowing malicious items be blocked.

How to see what your mac is loading at boot with knockknock

4 Answers 4

If you look at the code in the git repos, the author of a lot of the code is Patrick Wardle who appears to be a principal security researcher for Jamf. Seems pretty trustworthy.

I use many of their tools and this is probably not a false-positive. The only currently known false positives stated on their Dynamic Hijack Scanner webpage (at the bottom) ia Microsoft Messenger (mbukernel) and Microsoft Messenger Daemon (mbuinstrument).

About your scan results, I also have BitTorrent Sync installed on my Mac and I get the same message (tested on 2 other Macs). If I do a full system scan with DHS, I get many other applications that have the rpath vulnerability and the weak vulnerability, including iMovie and many Xcode tools. Please note that this is not something to be too worried about, as none of your Applications are “Hijacked” and dylib hijacking is quite a newly discovered vulnerability in OS X, and therefore your probably not going to see any in-the-wild attacks yet. If you are of the more technical sort, you can read their slides presented on this at CanSecWest here and the technical paper here.

I do trust the tools from this company and the person behind this (Patrick Wardle) is clearly stated on their About page. He has published more of his OS X research papers that are available at the bottom of that webpage. He has also done many presentations at security conferences including DefCon, and is the Director of R&D at Synack.

KnockKnock is a tool that scans for persistently installed items on your Mac, including Kernel Extensions, Launch Items, and Login Items and lists them on the screen.

Lastly, BlockBlock is simply a tool that watches for anything that becomes persistently installed (executed at boot every time your mac boots up), such as malware – the tool is still in beta as of this writing.

At the end, they are all great Mac security tools to check-up your mac :).

How to see what your mac is loading at boot with knockknock

If your Mac suddenly starts slowing down, what is the cause and how do you fix it? There are several possible causes and you must do some detective work using built in and third party tools.

Old Macs suffer more problems slowing them down than new models and if your Mac is really old and has a hard disk drive, it is even worse. New Macs have more memory and solid state drives, but even so, problems can occur.

I like to use Chrome for web browsing because it is the best for cross-platform work. It runs on everything – Mac, PC, iOS and Android – so my bookmarks, browsing history and extensions follow me wherever I go. Unfortunately, Chrome is one of the main reasons my Mac runs slowly.

Any app can cause problems of course, and I have tracked down the ones on my Mac that cause problems. Have you tracked down the cause on your Mac? How do you go about it?

Check CPU usage with Activity Monitor

Activity Monitor is a very useful app for looking at the apps and processes that are running in the background. Find it clicking Go > Utilities and then run it.

There is a list of processes, but not all of them may be displayed. Go to the View menu and select All Processes.

Select the View tab and then click the CPU column header. The processes are sorted with the ones using the CPU the most at the top (click the CPU column header again to reverse the sort order if the least CPU usage is at the top).

How to see what your mac is loading at boot with knockknock

The items at the top of the list are the ones using the most CPU. Here you can see that Google Chrome Helper is using 150% CPU. Two more Google Chrome processes a little way down the list add another 46% CPU. That is nearly 200% CPU in total!

No wonder the Mac was extremely slow and unresponsive, it is working flat out!

Macs slow down when one app uses too much CPU. Find out which app it is and close it.

Check memory usage with Activity Monitor

Select the Memory tab and click the Memory column header to sort the processes by the amount of memory they are using (click again to reverse the sort order). Here you can see that Google Chrome is using nearly 3GB of memory and this particular Mac has just 4GB of memory installed.

How to see what your mac is loading at boot with knockknock

Chrome does this sometimes and often the problem is a single tab. Either there is a fault with the web page or with Chrome’s handling of it and it has a runaway memory usage problem. It consumes memory and CPU like crazy.

This is not just a Chrome problem and sometimes other apps do a similar thing and drive the memory usage up to the max. If memory is limited, such as with 4GB and 8GB systems, too much memory usage slows down the Mac. Macs with fast SSDs are better able to cope with a memory shortage, but old Macs with hard disk drives suffer terribly. Activity Monitor can be used to see which app is causing the problem.

The solution is to shut down that app causing the problem. Restart it afterwards and everything is back to normal. Don’t do whatever caused the problem. In the case of Chrome, avoid that bad web page.

Use KnockKnock to see what is auto-loading

KnockKnock is a free app that digs deep into the operating system to discover what is loading when the Mac is started.

Every extra item that loads will slow down the startup and it takes longer to get to the desktop and for you to start working. Startup items may run in the background using processing power and memory, which adds to the Mac’s workload, which causes it to run more slowly than it otherwise would.

Extra startup items is one of the reasons an old Mac runs more slowly than it did when it was new.

Run KnockKnock and click the big button at the top – Start Scan. All the items that start with macOS are organised into categories on the left. Select a category to see a list of the items.

How to see what your mac is loading at boot with knockknock

An (i) icon on the right opens a small window with information about the file and the eye icon opens a Finder window to show the file. The app simply shows lists the auto-starting items and it does not do anything to stop them. It is purely for information purposes and it is up to you what you do.

Sometimes the solution is to uninstall the software responsible if it is no longer needed. Sometimes an app has been uninstalled, but not everything was removed and you may need to delete the remaining files manually.

The app does not give any advice on what to remove or how to remove it and you may need to Google items that are found to see what they are and if they are safe to delete.

KnockKnock is able to detect malware and it sends suspicious items to VirusTotal. This is an online service that scans files for malware and reports if they are clean or not. Sometimes malware is responsible for the Mac running slowly.

How to see what your mac is loading at boot with knockknock

Some technical knowledge is required with KnockKnock, but it is still a useful tool.

How to see what your mac is loading at boot with knockknock

Si usted es un usuario avanzado de Mac, probablemente instale una gran cantidad de software, solo para eliminarlo más adelante. ¿Pero cuántas de esas aplicaciones, controladores y herramientas de personalización todavía intentan hacer cosas cuando tu Mac arranca?

Si eres como yo, no tienes ni idea, y es por eso que es bueno que KnockKnock exista. Este programa gratuito le brinda una visión general de todo el software persistente en su Mac, básicamente todo lo que se inicia cuando su Mac lo hace. La información va mucho más allá de lo que se puede ver en Preferencias del Sistema, y ​​se presenta claramente en una única interfaz de usuario. Es útil para detectar malware y también para hacer limpieza de primavera.

RELACIONADO: Cómo recibir una notificación cada vez que se inicia una aplicación usando la cámara web de su Mac

KnockKnock es de Objective See, un miembro de confianza de macOS comunidad de seguridad detrás de una variedad de herramientas de seguridad, incluida una que recomendamos para saber cuándo está activa la cámara de su Mac. La instalación es simple: simplemente descargue el archivo ZIP, haga clic para descomprimirlo y luego arrastre el ícono a la carpeta Aplicaciones.

How to see what your mac is loading at boot with knockknock

Inicie KnockKnock y verá una interfaz de usuario sencilla. Haga clic en el botón “Iniciar Escaneo” para comenzar.

How to see what your mac is loading at boot with knockknock

Se le pedirá su contraseña.

How to see what your mac is loading at boot with knockknock

El escaneo en sí no debería tomar más de un minuto o dos.

How to see what your mac is loading at boot with knockknock

Cuando finaliza el escaneo, puede comenzar navegando por los resultados, que se dividen en secciones.

How to see what your mac is loading at boot with knockknock

RELACIONADO: Cómo habilitar o deshabilitar extensiones para personalizar su Mac

Por ejemplo, está la sección de extensiones de macOS, que incluye herramientas que dan a las aplicaciones la capacidad de integrarse con Finder, Centro de notificaciones y más. Verá el nombre de la extensión y su ubicación en su sistema de archivos, junto con la información de VirusTotal.

Esto significa que, de un vistazo, sabrá qué es algo, dónde vive en su computadora y si es probable que sea un malware. También verá botones para obtener más información y abrirá una ventana de búsqueda en la ubicación del archivo.

RELACIONADO: Mac OS X: cambie qué aplicaciones se inician automáticamente al iniciar sesión

Es mucha más información que obtienes las Preferencias del sistema y puedes usar este mismo enfoque para ver tus elementos de inicio de sesión de macOS.

How to see what your mac is loading at boot with knockknock

Pero recién estamos comenzando. Lo que realmente hace que KnockKnock sea útil son las categorías más avanzadas, como “Kernel Extensions”.

How to see what your mac is loading at boot with knockknock

Las extensiones Kernel son un software que interactúa con el sistema operativo a nivel kernel, y no es una buena idea dejar nada aquí a menos que sea necesario.

Es importante tener en cuenta los bloqueos junto a los listados. Para romper rápidamente las cosas:

  • Un bloqueo verde significa que algo está firmado por la propia Apple. Solo verá estos si incluye específicamente elementos del sistema operativo en las preferencias.
  • Un candado cerrado negro significa que algo es de terceros, pero está debidamente firmado.
  • Un candado abierto anaranjado significa que algo no está firmado.

Por ejemplo En la captura de pantalla anterior, puede ver que mi extensión Wireless360Controller (un controlador XBox 360) no está firmada, lo que significa que probablemente no debería mantenerla. Felizmente puedo ubicar el controlador en el Buscador y eliminar la extensión del núcleo.

No hace falta decir que eliminar las extensiones del kernel no es una buena idea si no sabes lo que estás haciendo, porque podrías romper las cosas. Pero para los usuarios avanzados de Mac, KnockKnock le ofrece una forma de verificar qué está ejecutando su Mac al inicio.

Esta es una gran herramienta para cualquier persona que quiera aprender más sobre el software que se ejecuta en su Mac, y también le ofrece una más forma de mantenerse al tanto de la creciente amenaza de malware de Mac.

How to see what your mac is loading at boot with knockknock

La transmisión de televisión se está volviendo más y más popular, permitiendo a los usuarios alejarse de los paquetes de cable estándar y en algo que se adapte a su estilo de vida . DirecTV es una de las primeras compañías tradicionales de “cable” en ingresar a la acción con DirecTV Now. ¿Qué es DirecTV Now?

How to see what your mac is loading at boot with knockknock

Si sales de compras en tu tienda Walmart o Target local, probablemente hayas notado muchos productos con emoticonos, como la sonrisa aparentemente omnipresente. pila de poo ¿Te has preguntado alguna vez si puedes hacer tus propios productos emoji? La respuesta simple a esa pregunta es “tal vez”, pero depende del emoji que quieras usar.

How to see what your mac is loading at boot with knockknock

Geoffrey_Carr

How to see what your mac is loading at boot with knockknock

Jika Anda adalah pengguna kekuatan Mac, Anda mungkin menginstal banyak perangkat lunak, hanya untuk menghapusnya nanti. Tetapi berapa banyak dari aplikasi, driver, dan alat kustomisasi yang masih mencoba melakukan hal-hal ketika Mac Anda dijalankan?

Jika Anda menyukai saya, Anda tidak tahu, itulah mengapa ada baiknya Knock-Knock ada. Program gratis ini memberi Anda gambaran umum tentang semua perangkat lunak persisten pada Mac Anda, pada dasarnya semua yang dimulai ketika Mac Anda melakukannya. Informasi ini melampaui apa yang dapat Anda lihat di System Preferences, dan disajikan dengan jelas dalam satu antarmuka pengguna. Ini berguna untuk menemukan malware, dan juga untuk melakukan pembersihan musim semi.

KnockKnock berasal dari Objective See, anggota tepercaya dari komunitas keamanan macOS di balik berbagai alat keamanan, termasuk yang kami rekomendasikan untuk mencari tahu kapan kamera Mac Anda aktif. Instalasi sederhana: cukup unduh file ZIP, klik untuk membukanya, lalu seret ikon ke folder Aplikasi Anda.

How to see what your mac is loading at boot with knockknock

Luncurkan KnockKnock dan Anda akan melihat antarmuka pengguna yang sederhana. Klik tombol “Mulai Scan” untuk memulai.

How to see what your mac is loading at boot with knockknock

Anda akan diminta kata sandi Anda.

How to see what your mac is loading at boot with knockknock

Pemindaian itu sendiri tidak boleh lebih dari satu atau dua menit.

How to see what your mac is loading at boot with knockknock

Ketika pemindaian selesai, Anda dapat mulai menjelajahi hasil, yang dipecah menjadi beberapa bagian.

How to see what your mac is loading at boot with knockknock

Misalnya, ada bagian ekstensi macOS, yang menyertakan alat yang memberi aplikasi kemampuan untuk berintegrasi dengan Finder, Pusat Pemberitahuan, dan banyak lagi. Anda akan melihat nama ekstensi dan lokasinya di sistem file Anda, bersama informasi dari VirusTotal.

Ini berarti, sekilas, Anda akan tahu apa itu sesuatu, di mana ia berada di komputer Anda, dan apakah itu mungkin malware. Anda juga akan melihat tombol untuk menarik lebih banyak informasi, dan membuka jendela Finder ke lokasi file.

Ini adalah lebih banyak informasi daripada yang Anda dapatkan dari System Preferences, dan Anda dapat menggunakan pendekatan yang sama ini untuk melihat item masuk macOS Anda.

How to see what your mac is loading at boot with knockknock

Tapi kami baru saja mulai. Apa yang benar-benar membuat KnockKnock berguna adalah kategori yang lebih maju, seperti “Ekstensi Kernel.”

How to see what your mac is loading at boot with knockknock

Ekstensi kernel adalah perangkat lunak yang berinteraksi dengan sistem operasi pada tingkat kernel, dan bukanlah ide yang baik untuk meninggalkan apa pun di sini kecuali diperlukan.

Kunci di samping daftar itu penting untuk diperhatikan. Untuk memecah dengan cepat:

  • Kunci hijau berarti ada sesuatu yang ditandatangani oleh Apple sendiri. Anda hanya akan melihat ini jika Anda secara khusus memasukkan item OS dalam preferensi.
  • Kunci tertutup hitam berarti sesuatu adalah pihak ketiga, tetapi ditandatangani dengan benar.
  • Kunci terbuka berwarna oranye berarti sesuatu tidak ditandatangani.

Misalnya, di screenshot di atas, Anda dapat melihat bahwa ekstensi Wireless360Controller saya (driver XBox 360) tidak ditandatangani, artinya saya mungkin tidak boleh menyimpannya. Dengan senang hati saya dapat menemukan driver di Finder dan menghapus ekstensi kernel.

Tak perlu dikatakan lagi bahwa menghapus ekstensi kernel bukanlah ide yang baik jika Anda tidak tahu apa yang Anda lakukan, karena Anda dapat merusak sesuatu. Tetapi untuk pengguna kekuatan Mac, KnockKnock memberi Anda cara untuk memeriksa apa yang dijalankan oleh Mac Anda saat boot.

Ini adalah alat yang hebat bagi siapa saja yang ingin mempelajari lebih lanjut tentang perangkat lunak yang berjalan di Mac mereka, dan juga memberi Anda satu cara lagi untuk tetap berada di atas ancaman malware Mac yang sedang berkembang.

  • Consejos
  • Blog
  • Cómo
  • Ventanas
  • Teléfono

How to see what your mac is loading at boot with knockknock

How to see what your mac is loading at boot with knockknock

How to see what your mac is loading at boot with knockknock

  • Principal 
  • Blog 
  • Cómo ver lo que tu Mac está cargando en el arranque con KnockKnock

How to see what your mac is loading at boot with knockknock

Si eres un usuario avanzado de Mac, probablemente instales un montón de software, solo para eliminarlo más tarde. Pero, ¿cuántas de esas aplicaciones, controladores y herramientas de personalización aún intentan hacer cosas cuando se inicia tu Mac?

Si eres como yo, no tienes idea, razón por la cual es bueno que KnockKnock exista. Este programa gratuito le ofrece una visión general de todo el software persistente en su Mac, básicamente todo lo que se inicia cuando lo hace su Mac. La información va mucho más allá de lo que puede ver en las Preferencias del sistema y se presenta claramente en una única interfaz de usuario. Es útil para detectar malware y también para hacer un poco de limpieza de primavera.

KnockKnock es de Objective See, un miembro confiable de la comunidad de seguridad de macOS detrás de una variedad de herramientas de seguridad, incluida una que recomendamos para averiguar cuándo está activa la cámara de su Mac. La instalación es simple: solo descargue el archivo ZIP, haga clic para descomprimirlo y luego arrastre el icono a su carpeta de Aplicaciones.

How to see what your mac is loading at boot with knockknock

Inicie KnockKnock y verá una interfaz de usuario simple. Haga clic en el botón “Iniciar escaneo” para comenzar.

How to see what your mac is loading at boot with knockknock

Se le pedirá su contraseña.

How to see what your mac is loading at boot with knockknock

El escaneo en sí no debería tomar más de un minuto o dos.

How to see what your mac is loading at boot with knockknock

Una vez finalizado el análisis, puede comenzar a examinar los resultados, que se dividen en secciones.

How to see what your mac is loading at boot with knockknock

Por ejemplo, está la sección de extensiones de macOS, que incluye herramientas que permiten a las aplicaciones integrarse con Finder, Centro de notificaciones y más. Verá el nombre de la extensión y su ubicación en su sistema de archivos, junto con la información de VirusTotal.

Esto significa que, de un vistazo, sabrá qué es algo, dónde se encuentra en su computadora y si es probable que sea malware. También verás botones para obtener más información y abrir una ventana del Finder a la ubicación del archivo.

Es mucha más información de la que obtiene de las Preferencias del sistema, y ​​puede utilizar este mismo enfoque para ver los elementos de inicio de sesión de macOS.

How to see what your mac is loading at boot with knockknock

Pero acabamos de empezar. Lo que realmente hace útil a KnockKnock son las categorías más avanzadas, como “Extensiones de Kernel”.

How to see what your mac is loading at boot with knockknock

Las extensiones de kernel son software que interactúan con el sistema operativo a nivel de kernel, y no es una buena idea dejar nada aquí a menos que sea necesario.

Las cerraduras al lado de los listados son importantes para tener en cuenta. Para romper rápidamente las cosas:

  • Un candado verde significa que algo está firmado por Apple. Solo los verás si incluyes específicamente los elementos del sistema operativo en las preferencias.
  • Un candado cerrado negro significa que algo es de un tercero, pero debidamente firmado.
  • Un candado abierto naranja significa que algo no está firmado.

Por ejemplo, en la captura de pantalla anterior, puede ver que mi extensión Wireless360Controller (un controlador de XBox 360) no está firmada, lo que significa que probablemente no debería mantenerla. Afortunadamente puedo ubicar el controlador en el Finder y eliminar la extensión del kernel.

No hace falta decir que eliminar las extensiones del kernel no es una buena idea si no sabes lo que estás haciendo, porque podrías romper cosas. Pero para los usuarios informados de Mac, KnockKnock le ofrece una forma de comprobar qué está ejecutando su Mac en el arranque.

Esta es una gran herramienta para cualquier persona que quiera aprender más sobre el software que se ejecuta en su Mac, y también le brinda una manera más de mantenerse al tanto de la creciente amenaza de malware para Mac.

Huggingface neuralcoref. ,2018;Howard and Ruder,2018) with a classification head on top to serve as base-line. In case, when running the code, you encounter errors that mention spacy. Aug 2018 – Oct 20202 years 3 months. After trying out each package, I personally preferred Allennlp, but as a team, Where To Download Nlp For Managers How To Achieve Excellence At Work Nlp For Managers How To Achieve Excellence At Work | 87451dd4a90ef4b8451c6062fa3990a5 Hello guys, This is our latest open-sourced project, Neuralcoref. State-of-the-art coreference resolution based on neural nets and spaCy. ,2020;Bai et al. Andrew constructed a co-occurrence network of book characters. What’s more, the library has multiple configurable parameters for example how greedily the algorithm should act. 1 Query Expansion with WordNet. The pipeline used by the trained pipelines typically include a tagger, a lemmatizer, a parser and an entity recognizer. 1 ProBERT: baseline model ProBERT uses a fine-tuned BERT language model (Devlin et al. It uses the Apple Pie parser Sekine to parse input text and then recognizes objects via an object-specific reasoner. Thomas Wolf thomaswolfcontact [at] gmail [dot] com. ScriptViz Liu and Leung is another similar system, created for screenwriting. It’s a pyTorch neural net for coreference resolution (e. Curated list of libraries for a faster machine learning workflow – GitHub – gvravi/toolbox: Curated list of libraries for a faster machine learning workflow NeuralCoref是spaCy 2. This example is done using spaCy and NeuralCoref modules. pip install spaCy==2. This model takes CLS token as input first, then it is followed by a sequence of words as input. Natural Language Processing, Deep learning and Computational Linguistics – Science Lead @Huggingface | thomwolf. These examples are extracted from open source projects. 1 introduces a new CLI command, spacy pretrain, that can make your models much more accurate. 2) to capture the positional in- scale generative tasks with both long and noisy multi-document web input and paragraph length output: long-form question answering on the ELI5 dataset (Fan et … You may check out the related API usage on the sidebar. As such, we scored contextualSpellCheck popularity level to be Small. Installation. 1),需要将spaCy降解到2. This module provides a spaCy v2. A lot of the progress made in my field for example came from studying biological systems. dataset_extractor import ConvertDataType from formative_assessment. One solution to this chal-lenge is centralizing support with The following are 30 code examples for showing how to use spacy. All this information is available on different websites in an Language Processing Pipelines. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To install Saber, you will need python>=3. To review, open the file in an editor that reveals hidden Many coreference resolution systems have more than 100 features but NeuralCoref has reduced the number of features used significantly and the features being used in NeuralCoref doesn’t depend on external databases or parser which means they are fast and easy to compute. A, B, and C model with probabilistic score and the prediction based on a threshold of 0. Travis CI enables your team to test and ship your apps with confidence. 6k. 4: Complete function extract_events1 The function extract_events takes the doc object generated by spacy with huggingface/neuralcoref, and Neuralcoref Visualizer. Last active Jan 21, 2021. Experimental results on the VisDial v0. The Doc is then processed in several different steps – this is also referred to as the processing pipeline. It has been widely studied in the past several years [17, 30, 31,37]. This notebook will download repositories linked from Awesome PyTorch List and train a character level model. CoreNLP is your one stop shop for natural language processing in Java! CoreNLP enables users to derive linguistic annotations for text, including token and sentence boundaries, parts of speech, named entities, … NLP Models Hub. transformers 4. Stories @ Hugging Face. 25. spaCy latest is 2. by relying on semantic type consistency. warn(‘resource_tracker: There appear to be %d ‘ Read writing from Thomas Wolf on Medium. Below tables summaries the extensions. Most likely the Spacy installation would do it for you, if not, follow all the steps. I’ve been programming since I was 10, writing video games and interactive software in Assembly and C/C++ but my first career was actually in Physics rather than … Download CoreNLP 4. Decooda. What’s new: The v4. 1+的管道扩展,它使用神经网络注释和解析指代消歧。 NeuralCoref已投入生产,已集成到spaCy的NLP管道中,并可扩展到新的培训数据集。 26. NeuralCoref is production-ready, integrated in spaCy’s NLP pipeline and we used NEURALCOREF 2 and selected around 18k sentence pairs and then divided them into train, development, and test sets (see Table2). With the demo you can visualize a variety of NLP annotations, including named entities, parts of speech, dependency parses, constituency parses, coreference, and sentiment. load(‘en’) # Add neural coref to SpaCy’s pipe import neuralcoref neuralcoref. Check documentation. It’s much easier to configure and train your pipeline, and there are lots of new and improved integrations with the rest of the NLP ecosystem. Slices are just datasets that are constructed by applying an instance of the SliceBuilder class in Robustness Gym. neuralcoref. Hugging Face huggingface – The AI community building the future. 0 Kernel Died when running Neuralcoref. Yesterday, HuggingFace launched their “HuggingFace course” — A self-paced introduction to their NLP library along with short explainers. When you do want to use a newer spaCy version > 2. A minimal version of my code: During the HuggingFace JAX Community Week, we had the chance to specialize OpenAI’s CLIP for the Italian language 🤌. [email protected]:

  • If your Mac won’t turn on, first make sure it’s connected to power.
  • Then, try putting your Mac in Safe Mode or Recovery Mode.
  • When all else fails, make an appointment with the Apple Genius bar to fix your Mac.
  • Visit Insider’s Tech Reference library for more stories.

Mac computers can sometimes run into issues resulting in them failing to turn on. Here’s how to recover from this and get them up and running again.

Check the power

The first step if your Mac won’t turn on is to ensure that it has power. Plug it into its charger and, should that not work, try different outlets, power cables, and power bricks.

If your Mac’s battery is completely dead, it may need to remain plugged in for a few minutes before it will power on.

Make sure there isn’t a display issue

If your Mac has an external display, ensure that the display also has power. Does your Mac make any sounds when turned on? If so, that could indicate that it is the display that is the issue.

Make sure the display cables are connected securely. If there are any input switches or other peripherals between your display and your Mac, try bypassing them and connecting your display directly to your Mac; this could rule out the peripherals as the issue.

If possible, it is advisable to also try another display and other cables; this would help to rule out the display and the cables themselves as the issue.

Quick tip: Make sure that your external display is set to the correct input for the type of connection (i.e. HDMI, DisplayPort, VGA) you have between your monitor and your Mac.

Double-check hardware cables

Loose hardware cables could be a culprit for your Mac not appearing to turn on. Ensure that cables connected to your Mac and any external displays are fitted securely.

Also check the cables for signs of wear and tear or fraying. If they show signs, the issue could be the cables themselves and they may need replacing.

Do a power cycle

Power cycling can sometimes bring Macs back to life. They are performed in different ways for different types of Macs, but all types need 10 seconds or more between cutting the power and rebooting.

If you have a M1 Mac or a MacBook, the power button must be held down for 10 seconds. You may hear an audible click after that time, but it’s nothing to worry about and is just the sound of the power being cut.

If you have a Mac desktop, unplugging it and letting it sit for at least 10 seconds is how you cut the power.

Boot in Safe Mode

Booting into Safe Mode is a way to rule out software or driver issues causing your Mac to not function.

On an Intel based Mac, this is accomplished by powering on your Mac and then immediately pressing and holding the Shift key; once the login screen has appeared, you may release the Shift key.

On a M1 Mac, Safe Mode is accessed by pressing and holding the power button until the startup options window appears. Once that happens, select a startup disk and then press and hold the Shift key, click Continue in Safe Mode, and then release the Shift key.

To leave Safe Mode, restart your Mac normally and don’t press any keys during startup.

Try Recovery Mode

Recovery Mode can be used to repair your hard drive (or solid-state drive ), reinstall the macOS operating system from scratch, restore files from Time Machine, and more.

To enter Recovery Mode, turn on your Mac and immediately press one of the three key combinations:

  • Command + R. This starts up Recovery Mode.
  • Option + Command + R. This combination starts up Recovery Mode primed to install the latest version of macOS that is compatible with your device.
  • Option + Shift + Command + R. This combination starts up Recovery Mode configured to reinstall the version of macOS that your system originally came with or the closest version still available.

If you encounter a lock icon, enter your Mac’s password. In the event that you have multiple volumes on your disk, you will need to select the volume which you intend to recover and then press Next.

On M1 Mac systems, Recovery Mode must be entered by pressing the power button until Loading startup options appear. From there, you can select the recovery option from above as desired.

Reset SMC

On Mac computers that do not have an M1 chip, resetting the SMC — System Management Controller — is another option for troubleshooting.

On a MacBook with a T2 Security chip

1. Power off your MacBook.

2. Unplug and reconnect it from power.

3. Press Shift + Control + Option for seven seconds, then also press down the power button as well.

4. Hold all four keys for seven additional seconds and then release them.

5. Wait an additional few seconds and then restart your MacBook.

On a Mac desktop with a T2 Security chip

1. Shut down your Mac and unplug its power cord.

2. Wait 15 seconds before plugging the power cord back into your Mac.

3. Wait 5 seconds, then turn your Mac back on by pressing the power button.

Quick tip: Find out if your Apple product has a T2 Security chip by checking the Apple official website and seeing if your model is listed.

On a MacBook with a non-removable battery and without a T2 Security chip

1. Power off your MacBook.

2. Press and hold Shift + Control + Option and the power button for 10 seconds.

3. Release all keys and power on your MacBook using the power button.

On a Mac desktop without a T2 Security chip

1. Power off the system.

2. Unplug your Mac’s power cord.

3. Wait 15 seconds before plugging the power cord back in.

4. After an additional five seconds, press the power button to power on your Mac.

Make an appointment with the Genius Bar

If all else fails, it may be time to take your Mac to Apple for professional assistance.