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Level 1

13 points

Big Sur won't reinstall

After a painful & lengthy System Migration, had to erase macOS Big Sur on 2020 Mac mini (8GB). Now it won't reinstall. It gets halfway through & stops with a flag: "An error occurred preparing the update. Failed to personalize the software update. Please try again." Same result on several attempts. After erasing MacHD, shouldn't there be NO 'personalized settings' yet?

Mac mini, macOS 11.0

Posted on Nov 28, 2020 3:11 PM

Top-ranking reply

trevoz

Level 4

1,990 points

Posted on Nov 30, 2020 8:59 PM

This is a known issue. See this Apple support article https://support.apple.com/en-us/HT211983 for a fix.

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Big Sur won't reinstall

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