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Can't turn off FileVault

I tried to upgrade from Mojave to Big Sur on my MacBook Pro, but apparently I can't do that because my disk is password-protected ("You may not install to this volume because it has a disk password"). I tried to turn off FileVault, but nothing happens when I click the "Turn Off FileVault…" button. There is a message further down the window that says "Some users are not able to unlock the disk Main Disk." with a button that says "Enable Users …" - nothing happens when I click that button. I am the only user on the MacBook, with Admin privileges. Any suggestions? Thanks.

MacBook Pro 15″, macOS 10.14

Posted on Feb 3, 2021 4:28 AM

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Posted on Feb 4, 2021 4:19 AM

Two articles worth having a look at and apply were one sees fit. Both seem to suggest delating the Volume that is encrypted. Before attempting either below - have a Time Machine Backup done beforehand.


https://www.macworld.com/article/3175691/what-you-can-do-if-you-forget-your-password-on-a-filevault-protected-mac.html


https://support.apple.com/en-ca/guide/deployment-reference-macos/apd47eb76103/web

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Question marked as Top-ranking reply

Feb 4, 2021 4:19 AM in response to greguva

Two articles worth having a look at and apply were one sees fit. Both seem to suggest delating the Volume that is encrypted. Before attempting either below - have a Time Machine Backup done beforehand.


https://www.macworld.com/article/3175691/what-you-can-do-if-you-forget-your-password-on-a-filevault-protected-mac.html


https://support.apple.com/en-ca/guide/deployment-reference-macos/apd47eb76103/web

Can't turn off FileVault

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