macOS Big Sur Beta 3 - An error occurred preparing the update

App & System Services Core OS
gamebroz OP
Created Jul ’20
Replies 23
Boosts 0
Views 7.7k
Participants 21
I can not update my 2019 iMac 27-inch to macOS Big Sir Beta 3. I always get at An error occurred preparing the update. Failed to personalize the software update. Please try again.

Anyone else experiencing this?

Replies  23
Boosts  0
Views  7.7k
Participants  21
macOS Big Sur Beta 3 - An error occurred preparing the update
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