Best answer: How do I downgrade to macOS High Sierra?

Can you downgrade from Catalina to High Sierra?

But first, if you want to downgrade from macOS Catalina to Mojave or High Sierra using a bootable drive, follow these steps: … Open System Preferences > Startup Disk and select the external drive with your installer as the startup disk. Click Restart. Your mac should then restart in Recovery mode.

How do I downgrade my Mac OS?

How to downgrade to the OS that shipped on your Mac

  1. Start up your Mac pressing Shift-Option/Alt-Command-R.
  2. Once you see the macOS Utilities screen choose the Reinstall macOS option.
  3. Click Continue and follow the on-screen instructions.
  4. Select your startup disk and click Install.

How do I downgrade my macOS High Sierra without time machine?

How to downgrade without a Time Machine backup

  1. Plug the new bootable installer into your Mac.
  2. Restart your Mac, holding the Alt key and, when you see the option, choose the bootable install disk.
  3. Launch Disk Utility, click on the disk with High Sierra on it (the disk, not just the volume) and click the Erase tab.
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Can I remove High Sierra from my Mac?

It is safe to delete, you will just be unable to install macOS Sierra until you re-download the installer from the Mac AppStore. Nothing at all except you would have to download it again if you ever need it. After install, the file would usually be deleted anyway, unless you move it to another location.

How do I downgrade from Mojave to High Sierra?

1st Way—Use macOS High Sierra That Was Shipped with Your Mac

  1. Back up all the data from Mojave to an external SSD or HDD.
  2. Restart macOS Mojave 10.14 and instantly press and hold Command + R keys. …
  3. On the “macOS Utilities” window, click “Reinstall macOS”. …
  4. Allow the Mac to perform a complete factory reset.

How do I downgrade my Mac without losing data?

Methods to Downgrade macOS/Mac OS X

  1. First, restart your Mac using the Apple > Restart option.
  2. As your Mac is restarting, press the Command + R keys and hold them until you see the Apple logo on the screen. …
  3. Now click on the “Restore from a Time Machine Backup” option on the screen and then click on the Continue button.

How do I downgrade to OSX Mojave?

The downgrade requires wiping your Mac’s primary drive and reinstalling MacOS Mojave using an external drive.



  1. Step 1: Back up your Mac. …
  2. Step 2: Enable external media booting. …
  3. Step 3: Download MacOS Mojave. …
  4. Step 4: Prepare your drive. …
  5. Step 5: Wipe your Mac’s drive. …
  6. Step 6: Install Mojave.

Is my Mac too old to update?

Apple said that would run happily on a late 2009 or later MacBook or iMac, or a 2010 or later MacBook Air, MacBook Pro, Mac mini or Mac Pro. … This means that if your Mac is older than 2012 it won’t officially be able to run Catalina or Mojave.

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Can you downgrade macOS with Time Machine?

Downgrading using Time Machine



To downgrade macOS via Time Machine, plug your Time Machine backup drive into your Mac, then restart the computer. … In this case, it would be the final version of macOS Catalina. Once the restore process is complete, you can use Time Machine backup to restore individual files as necessary.

Can I install older version of macOS?

The version of macOS that came with your Mac is the earliest version it can use. For example, if your Mac came with macOS Big Sur, it will not accept installation of macOS Catalina or earlier. If a macOS can’t be used on your Mac, the App Store or installer will let you know.

Can I downgrade from High Sierra to Yosemite?

No, only High Sierra and later. Sierra can use an APFS format drive, but only if you choose to do that. Sierra does not make any file format changes during the macOS install.

How do I restore my Mac to a previous date?

When you boot up your system or restart it, click Command key + R simultaneously to open OS X Recovery Tool. Select Restore from Time Machine Backup. If you have created more than one backup, select the one that has been created before your Mac errors occurred or before it got slow.

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