Memorydump uploaded...
Tried some fiddling with excluding files for scan, disabling rootkit scan,... in vain.
BSOD STOP-error message says
aswSP.SYS causes the problem
PAGE_FAULT_IN_NONPAGED_AREA
***STOP 0x00000050 (0xFFFFFFFE,0x00000000,0xF42FA1FC,0X00000000)
Hope this makes sense to anyone out there