A BitLocker recovery key is a unique 48-digit numerical password used to unlock a BitLocker-encrypted drive when the usual password or PIN cannot be provided. It acts as a backup to regain access to the data on the encrypted drive if BitLocker can't automatically unlock it.
What is BitLocker and the recovery key?
- BitLocker is a built-in encryption feature in Windows that protects data by encrypting the entire drive using a cryptographic key.
- The recovery key is generated during BitLocker setup as a fallback in case normal unlocking methods fail.
- It is crucial for ensuring access to encrypted data if system changes or lost credentials prevent normal unlock.
Where to find the BitLocker recovery key?
The recovery key can be stored or backed up in several locations depending on how BitLocker was configured:
- Microsoft Account : If BitLocker was linked to a personal Microsoft account, the recovery key can be found by signing into https://account.microsoft.com/devices/recoverykey from any device.
- Work or School Account : For devices managed by an organization, the recovery key may be stored in Azure Active Directory or within the organization's account. Access may require IT support.
- Printed Copy : Some users print their recovery key during setup and keep it in a secure place.
- USB Drive : The recovery key can be saved as a text file on a USB flash drive, which can be plugged into the locked device.
- Active Directory : In enterprise environments with domain-joined devices, the key might be stored in Active Directory and accessible by IT admins.
How to use the recovery key?
- When the BitLocker recovery screen appears, enter the 48-digit recovery key exactly as displayed.
- If the key is on a USB drive or printed, use it accordingly on the locked device.
- If recovering via Microsoft or organizational account, locate the matching key ID and use the corresponding recovery key shown online.
This ensures secure access to encrypted drives even if regular authentication fails, protecting data from loss or unauthorized access while maintaining a fallback recovery method.