macOS system reinstall

I have an old imac with macOS Catalina 10.15.7. If I use Shift-Option-Command-R during startup for reinstall, will all my data deleted, do I need to back up my data?

Posted on Jul 4, 2023 5:34 AM

Best reply

BDAqua

Level 10

240,275 points

Posted on Jul 4, 2023 6:58 AM

You should always have a backup or two, that being said, reinstalling the OS should not bother your Data.

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1 reply

Best reply

BDAqua

Level 10

240,275 points

Jul 4, 2023 6:58 AM in response to AplSupportJYZ

You should always have a backup or two, that being said, reinstalling the OS should not bother your Data.

macOS system reinstall

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