Once your Mac is running a newer version it won’t allow you to downgrade it that way. Unfortunately downgrading to an older version of macOS (or Mac OS X as it was previously known) isn’t as simple as finding the older version of the Mac operating system and reinstalling it. Remember to check the 'Back Up Automatically' box. After the Time Machine window appears, you can click 'Select Disk' to change the disk you want to back up. Find the System Preferences under the Apple menu. In the Recovery app window, select “Reinstall macOS,” click Continue, then follow the onscreen instructions. You can follow the steps to back up and restore your Mac with Time Machine 1. After the disk is erased, choose Disk Utility > Quit Disk Utility. Click the Format pop-up menu (APFS should be selected), enter a name, then click Erase. Select your startup disk on the left, then click Erase. Intel processor: Make sure that your Mac has a connection to the internet.ġ5 янв.Apple silicon: Turn on your Mac and continue to press and hold the power button until you see the startup options window, which includes a gear icon labeled Options.Will I lose everything if I reinstall macOS? How do I reinstall my MacBook Pro OS?.Does reinstall Mac OS delete everything?.Can I restore Mac to earlier date without time machine?.How do I restore factory settings on my MacBook air?.How do I restore my Mac to factory settings?.Can you go back an operating system Mac?.
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