Program keeps popping up the same security warning and lists wuauclt.exe as infected.
MacAfee Security cannot be opened now, although AVG Antispyware (not updated since Dec 08) could be opened once and did run but didn't find anything - however, now when I click it, it has the same "avgas.exe is infected" message. In fact, it seems most things come up with that message.
Periodically the computer opens up Internet Explorer and tries to go to www.viagra.com, or www.[bleep].com, etc.
I get a "Windows Security Center" window that pops up and looks official.
I also get a "Spyware alert" window that asks to "Activate your antivirus software" button.
Finally, an icon for "Antivirus Live" has appeared on my toolbar that occasionally opens and starts "scanning".
Thanks for any assistance you can give me.