Bit lcoker Key cannot find

Open the dedicated Microsoft account recovery-key page directly—the PC does not need to appear under Devices for a stored BitLocker key to be available.

Retrieve the recovery key

1. On another phone or computer, open: https://account.microsoft.com/devices/recoverykey
2. Sign in with every personal Microsoft account that may have been used to set up the locked PC.
3. On the BitLocker screen, note the first eight digits of the Recovery Key ID.
4. On the recovery-key page, find the entry with that ID and enter its corresponding 48-digit recovery key on the locked PC. ^1^

If the PC has Windows 11 version 24H2, its recovery screen might display a hint identifying the associated Microsoft account.

Check the other supported locations

If no matching key appears:

• Another person configured the PC: Check that person’s Microsoft account; the key might have been saved there.
• A work or school account was connected: Open https://aka.ms/aadrecoverykey, sign in, select Devices, expand the PC, and select View BitLocker Keys. If access is unavailable, contact the organization’s IT administrator. ^2^
• Printed or USB copy: Check important paperwork and USB drives used when encryption was enabled.
• Compare every available key using the Recovery Key ID, rather than only the PC name.

Address the missing device list separately

The general device list and BitLocker recovery-key storage are separate, so restoring the PC’s listing is not required to use an already-backed-up key. After recovering access:

1. Sign into Windows using the intended Microsoft account. Non-Surface Windows 11 PCs are added to that account’s device list automatically when signed in.
2. Allow up to 24 hours for the device to appear.
3. A PC owned or managed by an organization cannot be registered to a personal Microsoft account.
4. Only Surface devices can be registered manually by serial number; other Windows 11 PCs cannot. ^3^

Once Windows starts, search for Manage BitLocker, select Back up your recovery key, and keep an additional copy somewhere other than the encrypted PC.

If the key cannot be found

Microsoft Support cannot retrieve, recreate, or bypass a lost BitLocker recovery key. If none of the accounts, the organization, a printout, or a USB drive contains it, the encrypted files cannot be recovered through Windows. The remaining supported option is to reset or reinstall Windows, which removes the files on the encrypted drive. ^1^

Do not reset the PC until every possible account and backup location has been checked. Most Windows Recovery Environment options also require the BitLocker key when encryption is enabled. ^4^

References

1. Find your BitLocker recovery key | Microsoft Support
2. Manage your work or school account connected devices from the Devices page | Microsoft Support
3. [iOS](https://support.microsoft.com/accounts-billing/manage/manage-devices-used-with-your-microsoft-account)
4. Recovery options in Windows | Microsoft Support