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Can I downgrade back to High Sierra?
If you’re downgrading before the full public release of macOS Mojave, High Sierra is still available in the App Store. To do that, use Command+Option+R when you boot into Recovery mode (see Erase Mojave, above) instead of Command+Option+Shift+R.
How do I revert to a previous version of my Mac?
How to revert to an old macOS using Time Machine
- Start up your Mac and immediately hold down Command + R.
- Continue holding both keys until you see the Apple logo or a spinning globe.
- When you see the Utilities window choose Restore from Time Machine Backup and click on Continue.
- Click Continue again.
Is there a way to downgrade from a Time Machine backup?
How to downgrade by restoring from a Time Machine backup. Make sure you’re connected to your Time Machine backup drive. Restart your Mac, holding down the Command and R keys until you see the Apple logo. When the macOS Utilities screen appears, choose Restore from a Time Machine Backup.
Where to find time machine on High Sierra?
When your Mac has restarted, to recover files you created or worked on in High Sierra, click on Time Machine in the Finder menu bar and choose Enter the Time Machine. Navigate to the most recent backup and to the files and folders you want to restore and use Time Machine to retrieve them.
How do I restore my Mac from High Sierra?
Restart your Mac, holding down the Command and R keys until you see the Apple logo. When the macOS Utilities screen appears, choose Restore from a Time Machine Backup. Click Continue. Choose the last backup before you upgraded to macOS High Sierra. Wait for your Mac to restart.
What should I back up before downgrading from Mojave to High Sierra?
You may even require a USB drive of at least 16 GB. Before downgrading macOS Mojave, you must back up all the data; every single piece of your important files/folders to an external storage drive.