In front of the multi-coloured bar, you will see the phrase, "X.XX GB free out of XX.XX GB." If you don't have at least 8 GB of free space, you should delete some old files.īefore you update macOS, don’t forget to: In the same About this Mac, menu select the "Storage" tab. Cool, eh?ĭisk space: 8 GB of free space on the drive. Sierra is pretty lightweight, so you only need 2 GB of RAM to upgrade. ![]() Click the Apple icon in the top left corner.Here’s how to find out which OS version you’re running now: Check your macOS for Sierra compatibility If your current operating system is OS X Lion (10.7), you can skip a few versions and upgrade directly to macOS High Sierra. To upgrade to Sierra from, say, Mavericks, you’ll have to consequently upgrade to Yosemite and then to El Capitan first. ![]() Here are the models of Macs that are compatible with macOS 10.12 and can upgrade to Sierra:ĭoes order matter when you upgrade macOS? ![]() How to upgrade macOS: Sierra 10.12 compatibility listĪs with the previous versions, macOS Sierra is available for a limited list of Mac models.
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