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Time Machine is Apple's built-in backup software. Time Machine was first introduced on OS 10.5 Leopard.

0 votes
1 answer
207 views

Can somebody explain encryption on a Time Machine drive?

Something is suddenly not clear about Time Machine external drives. And I'm also unclear on how one can tell whether an external drive is encrypted. My current active Time Machine drive (for my 2017 i …
hbquikcomjamesl's user avatar
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Accepted

Can somebody explain encryption on a Time Machine drive?

I'm an idiot. I never noticed the "Info" button at the far right end of the toolbar in Disk Utility. The active Time Machine volume shows up as "Mac OS Extended (Journaled, Encrypted)" while the new o …
hbquikcomjamesl's user avatar
2 votes
2 answers
2k views

Can a Time Machine backup be used to undo an OS upgrade?

Given an upgrade from Mojave to Catalina: Can my Time Machine backup be used to undo the upgrade (i.e, return me to Mojave), if something goes wrong?
hbquikcomjamesl's user avatar