You can upgrade to macOS High Sierra from OS X Mountain Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 14.3GB of available storage space.
Check compatibility
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later MacBook Pro introduced in mid 2010 or later Mac mini introduced in mid 2010 or later iMac introduced in late 2009 or later Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple () menu. If your Mac isn't compatible with macOS High Sierra, the installer will let you know.
Make a backup
With High Sierra, Apple has taken its macOS operating system to new heights. From Apple’s efficient new file system to improved video streaming and support for virtual reality, this latest macOS version provides features improve your experience. And once again, David Pogue brings his humor and expertise to the #1 bestselling Mac book. Learn from Missing Manuals creator David Pogue—author of OS X Yosemite: The Missing Manual, the #1 bestselling Mac book on earth. Switching to the Mac: The Missing Manual, Mountain Lion Edition David Pogue — 2012-09-14 Computers.
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS High Sierra![]()
For the strongest security and latest features, find out whether you can upgrade to macOS Mojave, the latest version of the Mac operating system.
If you still need macOS High Sierra, use this App Store link: Get macOS High Sierra.
Begin installationMissing Manual Switching To The Mac High Sierra Ca
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Missing Manual Switching To The Mac High Sierra 10 13Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Learn moreMissing Manual Switching To The Mac High Sierra Mac
Overview
With High Sierra, Apple has taken its macOS operating system to new heights. From Apple’s efficient new file system to improved video streaming and support for virtual reality, this latest macOS version provides features improve your experience. And once again, David Pogue brings his humor and expertise to the #1 bestselling Mac book.
Whether you’re a developer or a home-user, this guide offers a wealth of detail on Apple’s macOS 10.13 operating system, this new edition covers everything High Sierra has to offer.
Missing Manual Switching To The Mac High Sierra Vista
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