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Big Sur will NOT recognize any of my external portable drives.

Big Sur will NOT recognize any of my external portable drives. What is the fix? Alternatively, is it possible to restore and revert to Sierra?



[Re-Titled by Moderator]

Posted on Mar 29, 2021 3:23 PM

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10 replies

Apr 10, 2021 10:32 AM in response to RonnieBuns

Ronnie, I have drives that I have to unmount/eject, physically disconnect, then reconnect for my Mac to work properly with them. I was told by a software developer that it has to do with Apple's new security in the OS. In my case, I can access the drives, open files on them but randomly I become unable to save changes to those files. I can save a new document on those drives but not update the one I opened.


Not sure if the same method would work for you but its worth a shot.


I don't know why Apple wants to protect me from myself but its very &%&#(% annoying.

Big Sur will NOT recognize any of my external portable drives.

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