I have a virus infection i cant get raid off. I've tried everything possible. My Avast security software 2013 cant detect so i tried scanning with aswMBR.exe which shuts down every time is scans wdnissvc. It says " The instructions at 0x7767e793 referenced memory at 0x00c4ffff. The memory cold not be read. CLick Ok to terminate the program" Memory scan detects no memory problems however. Virus blocks microsoft updates and denies me access to system restore and System VOlume Information.