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Hi there,
I just applied KB4598299 update and after a successful reboot, Windows 10 asked for the password to unlock the Bitlocker encrypted D drive. I tried the password and recovery key, both failed because the ID Key was changed. How come a Windows update brought a Bitlocker recovery??? Is there any way to unlock the D drive?
Any help will be appreciated!
Stephen
The recovery key does not get changed by any update.
There is one recovery key per partition, so you need to check whether you didn't mistakenly took the recovery key for c:, instead of d:
There are two ways to devalidate recovery key: either decrypt and re-encrypt (a new recovery key (and ID) gets created) or manual deletion and re-creation of the recovery key protector on the command line.
Thanks but I have only one partition encrypted by Bitlocker and the recovery key is saved at MS account. I just do not understand why a small Windows update would trigger Bitlocker recovery, moreover, got unlock password/recovery key invalid?
The key does not get invalid. As you say for yourself, the key ID is a different one, so in your Microsoft account, a different partition (or different device) has saved its key, not the one in question (or, the partition was re-encrypted, but that cannot possibly be caused by updates but always happens manually, on purpose). There's not much you can do here apart from looking for the print out of the recovery key (some people print it, others save it to a file, others only rely on the cloud key storage).
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Hi,
No user action is required for BitLocker in order to apply updates from Microsoft. Only the following updates that make changes to the firmware cause Bitlocker entering the recovery mode:
Please kindly refer to this doc:
BitLocker Upgrading FAQ
Please try re-entering the Bitlocker recover key matches the Bitlocker Identifier:
https://account.microsoft.com/devices/recoverykey
Best regards.
**
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Oh guys, my bad. I used to find the recovery key via short URL aka.ms/recoverykey, the page showed an old key to me and I did not notice the other keys were folded. @Bagitman , I thought twice about what you said and find all my keys by the link @Anonymous provided, one of them is the right key to unlock my drive. Thanks a lot for your supports!
PS: I still have no idea why the unlock password did not work?
