Step 3: Open Finder → Applications and right-click on Install macOS High Sierra Beta and select Show Package Contents. Step 2: Once macOS High Sierra is downloaded, close the installer that appears using Command (⌘)+Q. Until then, you can access the High Sierra beta from Apple’s developer website, or via Apple’s public beta website. Once High Sierra officially launches, you’ll be able to go directly to the Mac App Store and download it. Step 1: Download macOS High Sierra from the Mac App Store. Your USB drive should be at least 8GB, and USB 3.0 is preferred. Keep in mind that the following tutorial will purge everything on the drive, so make sure you back up any important data before proceeding.
Not only will this walk through work for the macOS High Sierra beta, but it will also work for the final public release once available.Ī note about flash drives: You will need a USB flash drive to make this work. If you want the ability to perform a fresh and clean install of macOS High Sierra, then you should consider creating a bootable macOS High Sierra USB install drive.
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