Bitlocker does not Auto-Unlock Fixed Data Drive

I have two fixed drives on my new system:

A 500 GB Samsung SSD with the OS and programs; and

A 250 GB Samsung SSD with my Dropbox and other data files.

The OS drive is encrypted with Bitlocker using Hardware Encryption and TPM+PIN+StartupKey.

The Data drive is encrypted with Bitlocker using Hardware Encryption and its current protectors are listed as:

Key Protectors:

     External Key
     Numerical Password
     Password
     External Key (Required for automatic unlock)

Automatic-Unlock is listed as "Enabled."

However, when I start Windows the drive does not automatically unlock. This results in error messages from several programs that must be manually overridden. Then, I have to manually enter a password or point Bitlocker to the USB drive containing the recovery key.

I have tried disabling BDE, adding the password, re-enabling, etc. Nothing works! This seems like a textbook setup of bitlocker, but it simply refuses to unlock automatically, even though the OS drive is encrypted and the correct protectors are present. 

Am I doing something wrong? Or does Auto-Unlock just not work?

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Bitlocker questions are usually outside of the scope of this forum. They are usually better handled on the TechNet forum https://social.technet.microsoft.com/Forums/en-US/home

I assume you set up auto unlock using the instructions here http://windows.microsoft.com/en-US/windows-8/unlock-bitlocker-protected-drive

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Cross-posted to here to correct.

You are correct about how I set it up. Still doesn't work.

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Haven't received any helpful responses in either forum. 

Drive still shows auto-unlock enabled with the required protectors, but will not unlock when windows starts. I've reluctantly moved all data to the OS drive until I can get this fixed, but it's a major problem. 

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Hi,

 

Thank you for posting your query in Microsoft community.

 

Please answer the below question to understand the issue better.

 

Which hard disk is not supporting with auto unlock?

 

I would appreciate if you provide the error with screen shots.

 

I suggest you to refer the below link to unlock the drives.

 

http://windows.microsoft.com/en-US/windows-8/unlock-bitlocker-protected-drive

 

Reply to us, we will be glad to help you.

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It is a Samsung 850 EVO used as as fixed data drive. The OS drive is encrypted with Bitlocker, using TPM+PIN+StartupKey. There is no error message: I can encrypt the drive just fine, and unlock it just fine after startup using any other protector I have enabled. However, while the Auto-Unlock feature shows that it is enabled, after each startup the drive is inaccessible until I use, e.g., a password to unlock it. I have seen the below link many times. It does not describe my problem, or any potential solution to it. 

(All of which was shown in my OP.)

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https://social.technet.microsoft.com/Forums/en-US/home  is the best place for bitlocker questions. The issue could be the drive controllers, chipset drivers, or any other driver or a BIOS update.

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Thank you for repeating an admonition I have already heeded. As noted above, I cross-posted at the recommended location after the first admonition. In the future, I will refrain from answering questions posed by Microsoft Support Engineers, since that seems to be counterproductive.

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Trey,

Apologies for digging this year old post up but I am having the exact same issue you described.  I too have a Samsung 850 EVO (actually 3 of them, 1 x system drive and 2 x fixed data drives).

Just wondering if you found a resolution to this issue?  It is driving me nuts!  I have tried just about everything and am now out of ideas.

I did get the auto-unlock feature working consistently when the encryption is software based however given the 850 EVO drive is a self-encrypting drive, plus the other benefits, I would much prefer hardware based encryption via eDrive and BitLocker.

Would really appreciate any help or other info you may have gathered.

Thanks in advance!

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Last updated May 17, 2021 Views 4,016 Applies to: