I have ran windebug and this is part of output:
Probably caused by : ntoskrnl.exe ( nt!KiTrap0E+233 )...
IMAGE_NAME: ntoskrnl.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 41108004
FAILURE_BUCKET_ID: 0xD1_nt!KiTrap0E+233
BUCKET_ID: 0xD1_nt!KiTrap0E+233
As I said, this only happens abaout 50% of the time and only if I login as administrator. If I login as another user, it does not crash.