Restart your Mac and as it restarts, hold Command R.Tip: The formatting process takes time to ensure that your Mac is plugged into power before starting.Īlso read: How to Use Cloud Storage for Saving Pictures, Videos, and Documents Restore CatalinaĪs stated earlier, this method is possible if you had backed up your MacOS Catalina in Time Machine. Select the APFS file format, then click on GUID Partition Map and confirm.Click Continue and choose Start-up Disk.When your Mac is rebooting, hold command-R and the utilities menu will papers.The next step after Backing up your data is erasing everything that is in the drive. You can transfer them to cloud storage like Google drive or use external storage. Let us take you over the steps to downgrade from Big Sur to Catalina using a Time Machine: Back up your dataĪgain, you need to backup your essential files. Unfortunately, this is only applicable if you had backed up your Mac with Time Machine before upgrading to macOS Big Sur. ![]() ![]() ![]() Using Time Machine is one way to downgrade Big Sur to Catalina. The problem is, how do you ensure that you do not lose data while downgrading? Well, let us take you through simple steps to downgrade Big Sur to Catalina without losing your data. If you are experiencing performance issues with macOS Big Sur, we would advise you to downgrade to macOS Catalina. The new macOS Big Sur has lots of nice features, but just like any other new version, you might have performance issues with the OS.
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