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by smileybarry
143 days ago
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BitLocker recovery keys are essentially the key to an at-rest, local copy of the real key. (I.e., they need access to the encrypted drive to get the real encryption key) When you use a recovery key at preboot, it decrypts that on-disk backup copy of the encryption key with your numerical recovery key, and uses the decrypted form as the actual disk encryption key. Thus, you can delete & regenerate a recovery key, or even create several different recovery keys. |
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