How to download mac os

macOS Support

Upgrade to macOS Big Sur

Before installing this upgrade, make sure that your Mac is ready.

Check compatibility

macOS Big Sur supports most Mac models introduced in 2013 and later.

Make a backup

Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.

Free up space

If the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.

Download macOS Big Sur

If you’re using macOS Mojave or later, choose Apple menu  > System Preferences, then click Software Update. If you’re using an earlier macOS, use the App Store instead.

Get to know macOS Big Sur

Learn about some of the new features of macOS Big Sur.

Control Center

Control Center brings favorite controls such as Bluetooth, Wi-Fi, Do Not Disturb, and Sound together in a single place—so you can easily adjust them at any time.

Notification Center

Notification Center puts notifications and data-rich widgets together in a singular view, making it simple to get information at a glance.

Safari

Customize your start page, navigate with ease using the new tab bar, and access a new privacy report to see just how Safari protects your privacy as you browse.

Discover great places around the world and navigate easier with guides, cycling directions, indoor maps, Look Around, electric vehicle routing, and more.

Messages

Send messages to friends and family using new tools that make it easier to keep track of group conversations and give you fun, engaging ways to express yourself.

Photos

Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos.

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How to reinstall macOS

Use macOS Recovery to reinstall the Mac operating system.

Start up from macOS Recovery

Apple silicon

Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.

Intel processor

Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.

If you’re asked to select a user you know the password for, select the user, click Next, then enter their administrator password.

Reinstall macOS

Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.

Follow these guidelines during installation:

• If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
• If the installer doesn’t see your disk, or it says that it can’t install on your computer or volume, you might need to erase your disk first.
• If the installer offers you the choice between installing on Macintosh HD or Macintosh HD — Data, choose Macintosh HD.
• Allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

After installation is complete, your Mac might restart to a setup assistant. If you’re selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

Other macOS installation options

When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions:

• On an Intel-based Mac: If you use Shift-Option-Command-R during startup, you’re offered the macOS that came with your Mac, or the closest version still available. If you use Option-Command-R during startup, in most cases you’re offered the latest macOS that is compatible with your Mac. Otherwise you’re offered the macOS that came with your Mac, or the closest version still available.
• If the Mac logic board was just replaced, you may be offered only the latest macOS that is compatible with your Mac. If you just erased your entire startup disk, you may be offered only the macOS that came with your Mac, or the closest version still available.

You can also use these methods to install macOS, if the macOS is compatible with your Mac:

• Use the App Store to download and install the latest macOS.
• Use the App Store or a web browser to download and install an earlier macOS.
• Use a USB flash drive or other secondary volume to create a bootable installer.

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How to get old versions of macOS

If your Mac isn’t compatible with the latest macOS, you might still be able to upgrade to an earlier macOS, such as macOS Catalina, Mojave, High Sierra, Sierra, or El Capitan.

To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it’s important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.

Check compatibility

The version of macOS that came with your Mac is the earliest version it can use. For example, if your Mac came with macOS Big Sur, it will not accept installation of macOS Catalina or earlier.

If a macOS can’t be used on your Mac, the App Store or installer will let you know. For example, it might say that it’s not compatible with this device or is too old to be opened on this version of macOS. To confirm compatibility before downloading, check the minimum hardware requirements:

Download macOS using Safari on your Mac

Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.

• macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
• macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
• macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion

Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [ Version Name ]. Open that app from your Applications folder to begin installing the operating system.

• macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
• OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
• OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard

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Создание загружаемого установщика для macOS

В качестве загрузочного диска для установки операционной системы на компьютер Mac можно использовать внешний диск или дополнительный том.

Эти расширенные инструкции предназначены в первую очередь для системных администраторов и других пользователей, имеющих опыт работы с командной строкой. Загружаемый установщик не требуется для обновления macOS или переустановки macOS, но он может оказаться удобен, если требуется выполнить установку на несколько компьютеров, не загружая установщик заново каждый раз.

Что нужно для создания загружаемого установщика:

• USB-накопитель или другой дополнительный том, отформатированный в Mac OS Extended, на котором есть не менее 14 ГБ свободного пространства;
• загруженный установщик для macOS Big Sur, Catalina, Mojave, High Sierra или El Capitan.

Загрузка macOS

• Загрузка macOS Big Sur, macOS Catalina, macOS Mojave или macOS High Sierra
  Эти элементы загружаются в папку «Программы» в виде приложения с именем «Установка macOS [ название версии ]». Если после загрузки запустится установщик, завершите его работу без продолжения установки. Чтобы получить подходящий установщик, выполняйте загрузку с компьютера Mac, на котором используется macOS Sierra 10.12.5 или более поздней версии либо El Capitan 10.11.6. Корпоративным администраторам следует производить загрузку с сайта Apple, а не с сервера обновления ПО, размещенного в локальной сети.
• Загрузка OS X El Capitan
  В результате этого действия загрузится образ диска с именем InstallMacOSX.dmg. На компьютере Mac, совместимом с El Capitan, откройте образ диска и запустите с него установщик с именем InstallMacOSX.pkg. Приложение с именем «Установка OS X El Capitan» будет установлено в папку «Программы». Загружаемый установщик создается именно из этого приложения, а не из образа диска или установщика .pkg.

Использование команды createinstallmedia в приложении «Терминал»

1. Подключите USB-накопитель или другой том, используемый для загружаемого установщика.
2. Откройте приложение «Терминал» в подпапке «Утилиты» папки «Программы».
3. Введите или вставьте в приложение «Терминал» одну из следующих команд. Предполагается, что установщик находится в папке «Программы», а имя MyVolume обозначает USB-накопитель или другой используемый вами том. Укажите вместо MyVolume имя своего тома в следующих командах.

Big Sur*:

Catalina*:

Mojave*:

High Sierra*:

El Capitan:

* Если на компьютере Mac установлена операционная система macOS Sierra или более ранней версии, включите аргумент —applicationpath и путь установки аналогично тому, как это делается в случае команды для El Capitan.

После набора команды

1. Нажмите «Ввод», чтобы ввести команду.
2. При появлении запроса введите пароль администратора и нажмите клавишу «Ввод» еще раз. При вводе пароля приложение «Терминал» не отображает вводимые символы.
3. При появлении запроса нажмите клавишу Y , чтобы подтвердить удаление всех данных на томе, затем клавишу «Ввод». Приложение «Терминал» показывает прогресс по мере стирания тома.
4. После стирания тома может быть отображено предупреждение о том, что приложению «Терминал» требуется доступ к файлам на съемном томе. Нажмите «OK», чтобы продолжить копирование.
5. Когда приложение «Терминал» сообщит о завершении процесса, имя тома будет совпадать с именем загруженного установщика, например «Установка macOS Big Sur». После этого можно закрыть приложение «Терминал» и извлечь том.
   

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How to Download MacOS Installers for New & Old Versions

Want to know how to download MacOS and Mac OS X Installers from? You might be wondering where you can download older versions of Mac OS from, particularly if you’re looking to install a different MacOS version or even an older system software version.

Downloading and using different Mac OS installers is very common for troubleshooting purposes, for IT staff and admins, and for tinkerers. This article will discuss where to download and access installers for macOS Big Sur, macOS Catalina, MacOS Mojave, MacOS High Sierra, macOS Sierra, Mac OS X El Capitan, OS X Yosemite, OS X Mavericks, Mac OS X Mountain Lion, Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Leopard, Mac OS X Tiger, and others too.

Where to Download Mac OS Installers From

The following links point to locations from Apple website where you can download various MacOS system software installers.

New versions of MacOS installers are typically available through the Mac App Store, accessed through a computer that is compatible with the latest Mac system software release.

Older versions of Mac OS X installers can often be downloaded as well, but from different sources.

For earlier versions of Mac OS X, including Mac OS X Mavericks 10.9, Mac OS X Mountain Lion 10.8, Mac OS X Lion 10.7, Mac OS X Snow Leopard 10.6, Mac OS X Leopard 10.5, Mac OS X Tiger 10.4, and before, the process to obtain those installers differs a bit.

Downloading MacOS Installers via Terminal

Mac users can download the latest macOS installer available from the Terminal by using the following command string:

You can also download specific installer versions by using the following syntax, replacing the asterisks with version number:

softwareupdate —fetch-full-installer —full-installer-version **.**.*

For example, to get macOS 11.3.1 the syntax would be as follows:

softwareupdate —fetch-full-installer —full-installer-version 11.3.1

Downloading Mac OS X Installers from App Store “Purchases”

If you had at one point in time purchased or downloaded a version of MacOS or Mac OS X from the Mac App Store, then you should be able to re-download it from the Mac App Store by going go the “Purchases” section. This can typically be used to access downloads for installers for MacOS Mojave, High Sierra, Sierra, Mavericks, and Mountain Lion, though there are some caveats and exceptions.

1. Open the App Store
2. Go to the “Purchases” section (newer App Store versions must go to Account > Purchases)
3. Scroll down the list of Purchased items to locate the Mac OS X Installer version you wish to re-download, then click on the download button

This works particularly well if the Mac you’re downloading the software onto is running an older version of Mac OS X.

This approach for re-downloading older OS X installers from App Store Purchases section works for obtaining many older versions of Mac OS X, particularly if the machine doing the downloading is running an older Mac release too. For example, re-downloading Mavericks from Yosemite, whereas if you’re running the App Store from newer versions of MacOS you’d need to follow the links further above to download the installers directly, or via the App Store links.

Downloading Mac OS X Snow Leopard

If you’re a registered Apple developer then you may be able to download Mac OS X Snow Leopard and Mac OS X Leopard directly from Apple ADC using the following links:

Downloading / Buying Mac OS X Mountain Lion, Lion, Mac OS X Snow Leopard

Apple also sells some older Mac OS X versions for convenience:

For buying even older versions of Mac OS X, you may have some luck searching on Amazon or Ebay and buying old physical copies of the installer disks. Keep in mind those earlier Mac OS X software updates used to cost a significant amount of money to update to and so even if they’re hold they can still carry a premium.

Another option is to peruse the Apple Vintage Software collection at Archive.org which may have image files of older system restore disks and other older system software, just beware that archive.org is not an official distributor of Apple software so appropriate precautions should be taken and only download from there at your own risk.

Finally, if you’re looking to download much older classic Mac OS software, check out this article which discusses finding original classic Mac OS System releases that go back far before the transition to Mac OS X and Unix underpinnings.

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