Follow the instructions to complete the restoration process of macOS High Sierra.Select the date and time from where you want to restore.Select Time Machine backup drive or Time Capsule then select “ Connect to Remote Disk”.
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The backup ensures you do not lose critical data due to complete drive erasure and subsequent installation of macOS High Sierra.Īlso Read, How to Recover Data from macOS Mojave Start-up Disk? 1st Way-Use macOS High Sierra That Was Shipped with Your Mac You may even require a USB drive of at least 16 GB.īefore downgrading macOS Mojave, you must back up all the data every single piece of your important files/folders to an external storage drive. Please note that you need to perform a few essential tasks in the downgrade process. If you are unhappy with the latest macOS Mojave 10.14 and wish to downgrade to macOS High Sierra 10.13, then follow this blog religiously.