If you're using a Mac notebook computer, plug it into AC power. It takes time to download and install macOS, so make sure that you have a reliable Internet connection. Time Machine makes it simple, and other backup methods are also available. ![]() Make a backupīefore installing any upgrade, it’s a good idea to back up your Mac. If your Mac isn't compatible with macOS High Sierra, the installer will let you know. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . MacBook Pro introduced in mid 2010 or later MacBook Air introduced in late 2010 or later Your Mac also needs at least 2GB of memory and 14.3GB of available storage space. You can upgrade to macOS High Sierra from OS X Mountain Lion or later on any of the following Mac models. Mac Os Sierra 10.12 Free Apple Download. ![]() ![]() Knowing that, I should be able to see the previous version in the App Store. I have previously upgraded my personal computer as follows: El Capitan - Sierra - High Sierra. I have a MacBook Pro running El Capitan that I need to upgrade to Sierra 10.12 (not High Sierra) for development reasons.ITunes forever changed the way people experienced. Music, TV, and podcasts take center stage.
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