An integrated threat protection solution designed to detect, investigate, and respond to cyber threats across Microsoft 365 services.
1
If your drive is encrypted with Bitlocker, the only place the Bitlocker Recovery key is automatically stored is on the associated Microsoft account on the link below, be sure to check any Microsoft account that may have been used on the PC and also any work or school account that may be linked to the PC.
(Note, even if your device does not show on the Microsoft account, the Bitlocker Recovery Key may still be available on this link)
https://account.microsoft.com/devices/recoverykey
Are you able to find the Bitlocker Recovery Key on any account that may have been used or linked to the PC?
2
Note: If you are unable to access that link because it keeps refreshing, there is currently a widely reported problem accessing that link, it is a server-side problem Microsoft needs to fix, you may need to try a few times to access that page.