Download file cài mac os x siera

Download and install current or previous versions of the Mac operating system.

Apple recommends using the latest (newest) macOS that is compatible with your Mac. macOS updates and upgrades help to maintain your computer's security, stability and compatibility, and they include the latest features and built-in apps.

Before installing, it's a good idea to back up your Mac. While installing, avoid putting your Mac to sleep or closing its lid. Your Mac will restart, and it may display a progress bar or blank screen several times. 

Use Software Update

Using Software Update is faster and easier than upgrading by other methods, and it may require less storage space to download and install the upgrade. Software Update will only display upgrades that are compatible with your Mac.

Update macOS on your Mac

Or use the App Store or your browser

When you use these methods instead of Software Update, your Mac may need more storage space to download macOS and complete the installation.
  

1. Click the link to open the App Store page for that macOS. 
2. In the App Store, click the Get button to start downloading the macOS installer.
3. After downloading to your Applications folder, the installer will open automatically. Follow the onscreen instructions to install macOS.

1. Click the link to download a disk image (.dmg) file for that macOS.
2. Double-click the .dmg file to open it and see the .pkg file within.
3. Double-click the .pkg file, then follow the onscreen instructions. This will install the macOS installer into your Applications folder.
4. Open your Applications folder and double-click the macOS installer, named Install [Version Name]. Follow the onscreen instructions to install macOS.

If you need help

If you're having difficulty getting the links to work, try again using Safari. It's in your Applications folder.

If you need more storage space to download or install, find out how to free up storage space.

If the macOS that you want isn't compatible with your Mac or the currently installed macOS, the installer will let you know and the App Store may prevent you from downloading it. For example, it may dim the Get button, say that the macOS is not compatible with this device or say that the requested version of macOS is not available.

Find out what to do if you receive an error message saying that an error occurred while downloading, preparing or installing, or that the installer is damaged or could not be verified.

Other ways to update or upgrade macOS include using macOS Recovery or using a bootable installer.

Published Date: November 03, 2022

New technologies at the heart of the system make your Mac more reliable, capable, and responsive — and lay the foundation for future innovations. macOS High Sierra also refines the features and apps you use every day. It’s macOS at its highest level yet.

Easily organize, edit and view your photos in Photos.
• Make short videos from your Live Photos using new Loop and Bounce effects.
• Easily locate and organize your content with the new sidebar.
• Conveniently access all of your editing tools in the redesigned Edit View.
• Fine-tune color and contrast in your photos with new Curves and Selective Color tools.
• Access third-party apps directly from Photos and save the edited images back to your Photos library.
• Rediscover images from your library with new Memories themes including pets, weddings, outdoor activities, and more.
• Create printed photo products and more using new third-party project extensions.

Improve your browsing experience with Safari.
• Stop web video with audio from playing automatically.
• Prevent websites and ad networks from tracking your browsing with Intelligent Tracking Prevention.
• Customize your browsing experience with new per-site settings for Reader, page zoom, content blockers, and more.

Enjoy refinements in Mail.
• Instantly find the messages most relevant to your search using Top Hits.
• Use Split View when composing new email in full screen.
• Save space on your Mac with compressed messages.

Look up flight information in Spotlight.
• Check the status of a flight by typing the airline and flight number in the Spotlight search field.

Collect your thoughts with Notes.
• Organize your information using configurable tables.
• Pin your favorite notes so they’re always at the top of the list.

Capture a moment in FaceTime.
• Take a Live Photo during a video call to any supported Mac, iPhone, or iPad.

Get music suggestions from a more natural-sounding Siri.
• Hear more variations in intonation, emphasis, and tempo when Siri responds to you.
• Enjoy personalized music recommendations from Siri when you listen to Apple Music.

Copy and paste files from one Mac to another with Universal Clipboard.
• Copy and paste files between your Macs using standard copy and paste commands.

Safely store your family data in iCloud.
• Share a single iCloud storage plan with your family and keep everyone’s data backed up and safely stored.
• Set up your family with a few clicks and add capabilities when needed.

Work together with iCloud Drive.
• Share and work on any file in iCloud Drive with other people so it is always up to date with the latest edits.

Upgrade the performance, reliability, and security of your Mac with the new Apple File System.
• Update to a new file system architecture designed for all-flash Macs.
• Experience greater responsiveness when performing common tasks like duplicating a file and finding the size of a folder.
• Enjoy faster and more reliable backups.
• Protect your entire drive with built-in native encryption for greater security.

Step up to the new standard for 4K video: HEVC.
• Create and watch high-resolution video with High Efficiency Video Coding (HEVC), which uses up to 40 percent less space without sacrificing quality.

Enjoy next-generation graphics and computation with Metal 2.
• Get the most out of the graphics capabilities of your Mac with the new and improved version of Metal.
• Discover immersive tools for content creation with support for virtual reality.
• Build state-of-the-art apps with features that accelerate common machine learning functions.

Some features may not be available in all regions or all languages. Some features require an iCloud storage plan. Some features have hardware requirements. Apple File System requires all-flash internal storage.