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I am running Windows 7 Ultimate 64 bit with TPM 1.2. I originally had BitLocker turned ON with my C drive encrypted. I unfortunately had to reimage my system, load the image back up and try to turn BitLocker back ON. When I press "Turn On BitLocker" and UAC asks for permission (I am using the administrator account) and click "yes", the process hangs and then nothing happens - no error message, no BitLocker wizard, nothing.

All of the BitLocker options in GPEDIT are set to "Not Configured" so I don't believe there are any policies that would be preventing it from turning on there.

I was wondering if I could get some assistance figuring out why BitLocker is not "Turning ON" and am not able to encrypt my drive.

Thanks in advance, I would be more than happy to provide any additional information that would be helpful.

Tom Carnes
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If you re-imaged your computer you may need to open up the TPM MMC and re-claim control of the TPM.

  • run mmc.exe as administrator.
  • Add the snap-in TPM Management.
  • Use Prepare the TPM.
Zoredache
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  • Thank you for your quick response! I am unfortunately not seeing "Prepare the TPM" under the TPM Management Console. The options I do have are: *Initialize TPM (greyed out) *Turn TPM ON (greyed out) *Turn TPM OFF *Change Owner Password *Clear TPM *Reset TPM – Tom Carnes May 25 '16 at 18:23
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    Diid you start the MMC as **admin**? Try doing the clear or reset, then **restarting your computer**. – Zoredache May 25 '16 at 19:22