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BitlockerWhat Is BitLocker Recovery Key?

What Is BitLocker Recovery Key?

What is a BitLocker recovery key, and how can I use it? What is its main role in BitLocker drive encryption, and where can I find it? I want to learn about these topics, and any suggestions are welcome.

Benjamin Brown

Benjamin

I'm glad to answer your questions. This post will introduce the BitLocker recovery key, covering its concept, application, and backup. Let's take a look.

Concept

The BitLocker recovery key, also known as a recovery password, is a 48-digit number that can be used to access a BitLocker-encrypted drive when the default unlock mechanism is unavailable. Every time you encrypt a drive (volume) with BitLocker, it generates a corresponding BitLocker recovery key. The way to distinguish which BitLocker recovery key corresponds to which encrypted volume is through the recovery key ID, which is displayed on the screen and saved in the backup file.

Application Scenarios

The main application of the recovery key is to verify the operator's identity when the computer is stuck on the recovery screen due to certain changes. Furthermore, it can help users gain access to an encrypted drive when they are unable to access it with the normal password (e.g., if forgotten or lost).

Back Up Recovery Key

You need to back up the BitLocker recovery key to a secure location, separate from the protected device. It can be stored in your Microsoft account, a USB flash drive, a file, or a printout. Microsoft Entra ID and AD DS can be selected if your device is joined to the corresponding domain. Please note that you can't store the recovery key in the following locations:

● The encrypted drive/volume.

● The root directory of a non-removable drive, such as "D:" or "E:".

Caution: Make sure you keep the recovery key safe. Once lost, there is no way to get it back.

Conclusion

The BitLocker recovery key is a password used to regain access to an encrypted drive when you are on the recovery screen. This provides users with an alternative method to access an encrypted drive. Back it up so you are prepared in case something unexpected happens.

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