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DiketsoS Author

Level 1

5 points

Big Sur Software Upgrade Error

Hi, I have been trying for a little over 24 hours to update my MacBook to Big Sur Software and appear to be stuck in a loop, without being able to get this finalized. See pictures below.

MacBook Air 13″, macOS 10.15

Posted on Feb 9, 2021 8:58 AM

Top-ranking reply

PRP_53

Level 10

91,345 points

Posted on Feb 9, 2021 9:43 AM

Force shutdown via Power Button and disconnect all external drives. Plug into charger and restart holding Shift key immediately at startup. This is Safe Mode which does a Repair Disk, clears cache files and load only Apple Default Software - so loads slowly - Normal. This may allow the upgrade to complete the installation.

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Big Sur Software Upgrade Error

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