Up until now I always thought this is a problem only related to my PC / Motherboard (which is a Asus Z87-Plus).
The error - which is easily reproducible - was as follows:
When the Uefi prompt for the Bitlocker password appears and I immediately entered the password, the computer would restart itself.
Only when I waited a little chances would be, that it would work.
I just had to be careful to not run in the 60sec timeout after which the PC would restart too (which is normal behavior).
Now some infos which might be important to know:
- I completely turn off power for the whole PC (with a switchable power distribution) every night
- I don't have the latest Bios (which I'm reluctant to install, because that's something I don't change lightly)
- I didn't update the AMDA00 device driver
What I read should help: enabling virtual memory; unfortunately I already had it enabled (off course on my Bitlocker encrypted 840 Pro) BUT it was set to a fixed 1024MB.
Last week I changed it to "system managed" and since then I haven't encountered the error!!
Ok, it has only been a week, but that's my resolution for now; and hopefully forever^^