Will reinstalling macOS delete my data?

When reinstalling macOS, is the datafrom the mac deleted or left in its place?


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Original Title: Reinstalling macOS

Posted on Nov 11, 2025 12:08 PM

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Posted on Nov 11, 2025 12:27 PM

Typically the user data already in place is left alone, provided you don’t erase anything.


Still, it’s always a good idea to backup your stuff before you attempt to reinstall the OS. And backing up regularly should be a habit.

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Will reinstalling macOS delete my data?

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