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BigJCP Author

Level 1

8 points

Migration to Big Sur has disabled security password

I recently updated my MacBook Pro to macOS Big Sur (from Catalina) and now am unable to unlock the Security and Preferences window to make any changes. I need to do this to allow my antivirus system access to specific files but can't now unlock these settings.

I've also tried on my wife's machine (who doesn't have any additional antivirus programme) and since update she also cannot unlock the Security & Preferences window (i.e. padlock will not unlock because it doesn't recognise the password).

Is this a common fault with the upgrade to Big Sur? How do we correct it? Any ideas / suggestions gratefully received.

Thanks.

MacBook Pro 15″, macOS 10.13

Posted on Jan 2, 2021 3:44 PM

Top-ranking reply

Barney-15E

Level 10

116,728 points

Posted on Jan 3, 2021 6:03 AM

Try an SMC Reset. Not sure if it will work, but it seems to be a solution found on other, similar posts.

If that works, still don't allow the Anti-virus software to infect your Mac.

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Migration to Big Sur has disabled security password

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