I have a Surface Pro 6. One day my computer got locked with BitLocker (for no apparent reason). After recovering the key I disabled device encryption and decrypted my hard drive.
If I now do
manage-bde -status, I get this information:
However, this seemed to have disabled my TPM. When I boot into UEFI, the TPM option is disabled, and when trying to enable it I get a message saying
The system failed to change the state of the TPM. Please reboot the system to try again.
Disabling Secure boot does not help (I tried enabling TPM with secure boot on and off).
I learned that this could be an issue related to BitLocker. In efforts to enable TPM, I followed instructions that told me to pause BitLocker, but that command gave me an error:
I have another surface pro that has BitLocker encryption enabled, and the TPM is enabled (as by default).
From this, I have a few questions:
- Are the issues between decrypting my drive and being unable to turn on TPM related?
- How can I re-enable my TPM module?
*For more information, I have Surface Pro 6, model 1796.