Follow the on-screen instructions to finish installing the software update, which should take around half an hour depending on the spec of your Mac. Once the download has finished, you'll see a macOS High Sierra installer launch.Download progress will appear in your Purchases tab. Click Download to initiate the download, and fill out your Apple ID information if prompted.Once you've backed up your Mac, launch the App Store (located in /Applications) and search for macOS High Sierra.Wait for the Time Machine backup to complete before continuing with the macOS High Sierra installation.įollow these instructions to install the macOS High Sierra update on your Mac. A progress bar will appear in the Time Machine system preference pane. This article shows you how to upgrade or do a clean install of macOS Mojave on a Mac currently running macOS High Sierra.If not, open System Preferences > Time Machine and click Select Backup Disk.If a software update is available, select Update. An alert may appear asking if you want to use the drive to backup your Mac. In the menu bar at the top of the App Store window, select the Updates tab.Your Mac also needs at least 2GB of memory and 14.3GB of available storage space. Choose a new hard drive, or one that you don't mind erasing. Check compatibility You can upgrade to macOS High Sierra from OS X Mountain Lion or later on any of the following Mac models. Connect an external hard drive to your Mac.
However, we recommend a full back up before you install it.Īpple makes it very easy to back up your Mac using Time Machine, so there is no excuse not to create a Time Machine backup before installing macOS High Sierra.įollow these steps to back up your Mac using Time Machine.
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