Restore points work only on XP for Vista and later lastregback is needed. This is due to the architecture of VSS
Are you talking specifically for this aswRvrt.sys issue or in general ?
I ask only because I thought System Restore in all Windows.....XP, Vista, 7, 8 put the registry back to previous restore point too ?
Not to go too far from the subject of the thread but what does a F8
Known Good Last Point do ?
Hopefully copystart will post his results of FRST fix effort.