The remaining supported options are limited to finding an existing backup of the recovery key. A deleted Microsoft account does not provide another BitLocker bypass path, and Microsoft Support cannot retrieve, provide, or recreate a lost BitLocker recovery key.
Use the recovery key ID shown on the BitLocker screen first. Note the first 8 digits, then check these locations for a matching key:
- Another Microsoft account If the device was set up by someone else, or BitLocker was enabled under a different account, the key might be stored there. Check the recovery keys page from another device.
- Work or school account If the laptop was ever signed into an organization account, the key might be stored there. From another device, sign in to the work or school account, open Devices, expand the device, and select View BitLocker Keys.
- Printed copy Check any paperwork saved when BitLocker was turned on.
- USB flash drive If the key was saved to USB, connect it to the locked device and follow the prompts, or open the text file from another device.
If the device is managed by an organization, the IT department may be able to retrieve the key.
If the old Microsoft account is permanently deleted and the recovery key is not present in any other backup location, there are no remaining recovery options for unlocking the drive. The only remaining path is to reset or reinstall Windows. This removes files on the encrypted drive.