Greetings, all! Here's one that will make you scratch your head. If you've solved this issue please enlighten us!
SCENARIO: Optiplex 7040 Micro, BIOS 1.5.10, UEFI boot for Win 7 64-bit, Win 7 Enterprise 64-bit installed OK, updated to Dell TPM 2.0 applied from here , Microsoft TPM 2.0 Hotfix 459309 for Win 7 applied from here . TPM On and Enabled in BIOS. We want this configuration for maximum security (need to be HIPPA compliant).
From Windows control panel turned on Bitlocker drive encryption (next, next, next, etc.) and Bitlocker finishes. Upon reboot the system displays "Windows is loading files..." message on screen after reboot. Nothing else happens, never loads Windows, just sits there.
Tried just about every different combination of TPM options in BIOS and no change. Even tried to clear TPM and disable TPM, same thing.
I contacted Dell Tech Direct and their solution was basically "Upgrade to Windows 10". For a number of reasons we cannot upgrade our environment to Win10. Meanwhile I have about three dozen 7040 Micros waiting to be imaged and deployed.
Next I re-did the Win 7 x64 install using Legacy boot, applied the hotfix (still TPM 2.0) and tried bitlocker again. While it was doing "Initializing the TPM security hardware" step it crashed with Error Code 0x80280285: "A problem occurred during BitLocker setup. You may need to restart BitLocker setup to continue." Nice. I have a feeling I'm going to have to back down to TPM 1.2 with Legacy Boot to get bitlocker to work on Win7-64 on this hardware.
If any of you have come across this issue and SOLVED IT please share your magic sauce of combinations of Windows & Dell patches and possibly voodoo.
Rich M. in CLE OH