unknown bitlocker id after failed update

Question

Hello everyone. i just restarted my laptop after an update. During the restart i got the message about resetting psp nvram and ftpm vram. i said no and am required to enter my bitlocker key (would have to regardless if i said yes or no). i have used bitlocker keys before. i could do this without any issue but now its asking for a key with an id that doesnt exist. i have tried using the keys i do have but since the id doesnt match they dont work. what are my options? would using a backup from a few months allow me to use one of my existing keys? or are there any better options? if possible i would rather not go back to my last backup since i will lose a lot of progress i made in a project over the last month.

thanks in advance

Answer 1

If the recovery keys you have in your Microsoft account don't work then a clean install is usually the only option.

Finding your BitLocker recovery key in Windows - Microsoft Support

If BitLocker is activated I doubt you can apply a backup to the system.

I hope you have a backup of your project to restore after the clean install. It will delete everything on the system disk.

Answer 2

thanks for all your replies. unfortunatly clean windows install was indeed the only option so i lost my progress but at least my pc is working again

Answer 3

See also Posts in: https://answers.microsoft.com/en-us/windows/forum/all/bitlocker-enabled-itself-on-windows-10-home/9aea3b1b-72db-4b10-8214-8b8b94da7d41?page=3

Answer 4

I'm not sure how, but try to deinstall last windows update (possible KB5040427). I have read in another forum (in german) that someone could prevent this prompt of bitlocker with deintsallation of the update