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Connect the external hard drive that you used for Time Machine backups to your system.Make sure you back up any files that you created while working with the beta (unless, of course, you don’t care whether you lose them).If you made a Time Machine backup just before you installed the beta, then reverting to your previous stable OS is relatively simple. Restore to a previous Time Machine backup Select “Restore Defaults” to unenroll your Mac from the beta.
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Select “Details.” in the bottom-left corner of the window, underneath the message “This Mac is enrolled in the Apple Beta Software Program.”.Go to “System Preferences” > “Software Update.”.If you aren’t in a rush to go back your previous OS, you can simply unenroll your Mac from the beta program and wait for the next stable update, which will revert you to that OS: If you’re not sure which you have, click on the Apple logo in your system’s upper left corner, and choose “About This Mac.” In the Overview, you’ll be able to see which processor you have. Note: some of these steps may differ, depending on whether your Mac has an Intel processor or Apple silicon, like the M1 processor.
#How to completely reimage macbook air el capitan how to#
Whichever path you chose, we’ll walk you through how to find your way back to a more reliable OS. Apple launches public beta of macOS Monterey, bringing updates to FaceTime and Safari
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