"Merle" <planogram@comcast.net> wrote in message news:AD82691A-CCFC-4DB5-AED6-884CAB186755@microsoft.com...[color=blue]
> My wife was on the internet and suddenly System Pro popped up and started
> scanning warning my wife of a virus attack on her computer and wanted her to
> buy the AV Pgm for $49.95. She just clicked all the exits and got off of
> the internet and now she is locked out of her computer. We can't get system
> restore to work, Can't get safe mode to work, She has AVG 8 installed but
> cannot start it. Tried SFC /scannow but was denied access. Tried putting
> the Windows XP disk in to do a repair and was unable to get it to start. I
> think the only thing to do is reformat the HD and start over but her PC
> ignores the A drive and the dvd drives. I cannot get into it in order to re
> format it. We are at a loss. Any Ideas would be appreciated.
>[/color]

Have a look at this:
[url]http://www.bleepingcomputer.com/virus-removal/remove-antivirus-system-pro[/url]