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
The Safari browser comes pre-installed with macOS and it’s a browser many people love. Firefox still crashing after refresh to Firefox 77 Mac OS; How to download and install Firefox on Windows; Websites show a spinning wheel and never finish loading. Is Firefox browser suitable for a Mac running High Sierra 10.13.6? 2 replies 1 has this problem 1248 views; Last reply by CORKULIKE 1 year ago. 9/19/18, 6:48 AM. 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 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. High Sierra (10.13.x) High Sierra is another Mac OS with a built-in Smart Card reader. However, unlike Mojave or Catalina, you cannot access CAC-protected sites through Safari. They are not supported through Safari in this OS. You need to use Google Chrome for optimal results.
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 backupMac Os High Sierra Features
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.
Mac Os 10.12 Sierra DownloadGet 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 Catalina, 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 installation
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.
Allow 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 moreMac Os High Sierra Installer
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