![]() ![]() We hope you were able to successfully downgrade from macOS Big Sur to macOS Catalina or Mojave without any hassle. Don’t forget that you’ll still need a backup of your data to avoid losing your important files, apps, documents, and other personal data. You can make use of the internet recovery method which installs the macOS version that shipped with the Mac, and then clean installing a prior macOS release. This isn’t the only way to downgrade the software on your Mac. The only requirement is that you need to have a Time Machine backup of your data with the macOS version you’re looking to downgrade to. For instance, if the Time Machine backup was made when macOS Catalina was installed, your Mac will reboot into macOS Catalina after restoration, and it will be as you left off the last time using Catalina.Īlthough we were obviously focusing on downgrading from macOS Big Sur in this article, these exact steps can be used to downgrade from any version of macOS. Once the restoration is finished, the Mac will automatically restart and boot directly into the macOS version that was running when the selected Time Machine backup was made. Now, you just need to patiently wait until the whole process is complete.ĭepending on the speed of your Mac’s hard drives and the size of the backup, the restoration and downgrade process could take a while. Now, click “Restore” to begin restoring the Time Machine backup to the selected drive. This should be the same drive that we just formatted completely in Step 7. Next, select the name of the destination drive to restore the Time Machine backup of macOS to. In the “Select a Backup” screen, choose the most recent backup from the macOS version you want to downgrade to.Choose the Time Machine drive that’s connected to your Mac as the Restore Source and click on “Continue”. Now, your Mac will start searching for available backups.You’ll be shown a brief description of this procedure.Next, choose “Restore from Time Machine” from the macOS Utilities menu.Once the drive is successfully formatted, you’ll see the following screen.Now, click “Erase” to confirm and format your Mac – THIS ERASES ALL DATA ON THE DRIVE, so don’t do it unless you’re absolutely sure that you have a backup! Enter a preferred name for the drive and then choose the file system format as either “Apple File System (APFS)” (if you’re using a Mac with Solid State Drive) or “Mac OS Extended Journaled (HFS )” (for Macs with mechanical and hybrid hard drives). ![]()
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