I have 4 Asus Transformer Books running Windows 8.1. These have a TPM Chip. I have encrypted the OS drive on each of these and they all exhibit the same symptom. I am using enhanced PIN.
After powering the unit on it lands on the Bitlocker Password Entry screen. The PC will shutdown at different times, 4 seconds to 30 seconds later. It doesn't matter if AC adapter is attached or if your typing or not. I have seen other with this issue and unfortunately no answers. If I enter the Bitlocker PIN I get to the OS without an issue.
This is an Asus Transformer Book T300L, i7 with 256GB SSD.
Thanks for any help.