Markus1972, we still don't know where is the bug here. Filters, vLite, or couple of antivirus vendors (unlikely but maybe they have to adjust for the wim filter). So they just changed the engine used...that doesn't help to anyone except them. Maybe they could debug it and tell us what is actually killing what. edit: blah by seeing that people reported that since RC2 without vLite it makes me angry: "Been using it as my main OS since RC1. So it crashed sometimes. RC2 made that a lot better. Later builds haven't crashed at all (unless you use imagex to mount a WIM file read write while you have SAV 10.2 installed - that causes a BSOD, but only enterprise admins will be doing that)." From http://digg.com/software/8_Vista_Mythbusters