First of all, connect the Time Machine drive to your Mac.

Once again, do not proceed if you don’t have a backup. If you don’t have a backup, you will not be able to downgrade, and doing this will simply result in permanent loss of data since you’ll be formatting or erasing your drive during the process.Īpart from that, if you have any important data or files that you created after updating to macOS Big Sur, you’ll need to manually transfer them to an external drive since this data won’t be restored from the Time Machine backup. Warning: Before you go ahead with any of the steps below, make sure you already have a Time Machine backup that was made prior to installing macOS Big Sur.

How to Downgrade macOS Big Sur to Catalina or Mojave In this article, we’ll be guiding you through the steps to properly downgrade your Mac from macOS Big Sur to macOS Catalina or Mojave. Looking to roll back the software on your Mac to an older version? We’re here to help. The easiest way to downgrade from macOS Big Sur is by formatting your Mac and then restoring it from a Time Machine backup that was made prior to the installation of macOS Big Sur.

Early adopters of macOS Big Sur or any major macOS software update in general would sometimes regret updating their device and may want to roll back to the older version that was installed.

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