What identifier is meant in the Bitlocker recovery key document

bitlocker

when turning on bitlocker for a device, the following recovery key document is created:

BitLocker Drive Encryption recovery key

To verify that this is the correct recovery key, compare the start of
the following identifier with the identifier value displayed on your
PC. Identifier:

8dd91aa1-55a3-4A41-8B0D-4531B127A2F0

If the above identifier matches the one displayed by your PC, then use
the following key to unlock your drive. Recovery Key:

654321-987654-951846-7194568-654321-987654-951846-7194568

If the above identifier doesn't match the one displayed by your PC,
then this isn't the right key to unlock your drive.

Try another recovery key, or refer to
http://go.microsoft.com/fwlink/?LinkID=260589 for additional
assistance.

What identifier is meant here?

Best Answer

The identifier of the drive is generated when the drive is encrypted. This allows you, the end user, to identify which recovery key goes to which encrypted.

The reason the message says to "compare the start of the following identifier with the identifier value displayed on your PC." is because of how Bitlocker Recovery itself works.

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Notice the Recovery Key Identifier part of the screenshot.

One would normally save the recovery key with the identifier in the filename like so.

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How to Unlock a Drive using BitLocker Recovery in Windows 8 and 8.1

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