On another device, open https://account.microsoft.com/devices/recoverykey, sign in with the Microsoft account used to set up the Windows 11 desktop, and match the listed 48-digit key to the Recovery key ID shown on the desktop.^1^
Find and use the correct key
- On the blue BitLocker recovery screen, note the first eight digits of the Recovery key ID.
- On another phone or computer, open the recovery-key page above.
- Sign in with the Microsoft account originally used to configure the desktop.
- If several keys appear, find the entry whose Key ID matches the ID displayed on the desktop.
- Enter its corresponding 48-digit recovery key on the desktop.
For Windows 11 version 24H2, the recovery screen may display a hint identifying the Microsoft account that holds the key.^1^
If the key is not in that account
Check these locations:
- Another Microsoft account: If someone else initially set up the desktop or enabled BitLocker, the key may be stored in that person’s account.
- Work or school account: If the desktop was connected to an organization, open https://aka.ms/aadrecoverykey, sign in, select Devices, expand the desktop, and select View BitLocker Keys. Contact the organization’s IT department if access is restricted.
- USB drive: Connect any USB drive used when encryption was configured. If the key was saved as a text file, read it using another computer.
- Printed copy: Check paperwork supplied with or created when the desktop was configured.
If no recovery key can be found
A BitLocker recovery key cannot be bypassed, retrieved, or recreated by Microsoft Support. If the correct key is unavailable, the remaining supported option is to reset or reinstall Windows, which removes all files on the encrypted drive.^1^
Because resetting causes data loss, check every account and backup location before proceeding.
References