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Level 1

10 points

Revert to older MacOS

How do I change to MacOS Ventura back to MacOS Sierra?

iMac 27″, macOS 13.0

Posted on Oct 30, 2022 4:09 PM

Top-ranking reply

Level 10

245,459 points

Posted on Oct 30, 2022 5:26 PM

That far back requires a complete Erase of the drive & formatting it back to MacOS extended Journaled instead of APFS which Sierra can't deal with.

Do you have a good backup?

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