OneDrive Personal Vault cannot unlock, error code 0x8004db90

Has it worked for anyone? My two-factor authentication is now not working, and I also don't have access to my data. It also annoys me that the support staff connected to my computer and started restoring the system, even though I kept telling her that the problem was not with the computer. In the end, the computer stopped booting, and the staff member just closed the ticket, leaving me with a non-working computer. Why is there no feedback and no way to reopen the ticket or leave a comment?

I have the same issue

Not sure whether this changes anything or with finding a solution, but I have noticed that the day that the Personal Vault stopped working, OneDrive created a new folder called “Attachments”…

I haven't been able to access my OneDrive Personal Vault in the past few days. I've tried multiple ways (PC, iOS app, webpage) but none works -

• on the iOS app, it prompted me to setup personal vault even though I've done the setup a long time ago. After completing authentication, the app popped up with "Unable to complete Personal Vault setup, please try again in a few minutes". I tried removing the app and started fresh and that didn't help.
• on webpage, after authentication, it popped up saying "There was a problem unlocking your Personal Vault". I tried both Edge and Chrome and got the same results.
• on PC, onedrive can't unlock my personal vault, and popped up with error code 0x8004db90. I tried unlinking onedrive and relinking it and that didn't help.

Overall this feels like an authentication issue but somehow only affects personal vault access.. If anyone has any suggestions I'd greatly appreciate it!

I'm having the same problem right now.

I have the same issue,

and I created a support request with Microsoft.