I keep getting this system error message that my system was infected by a dangerous virus and to download?

I think your antivirus software did'nt work. So you just download AVG for Free which you can download for free from http://www.grisoft.com/

Or you can search for better antivirus softwares from http://www.download.com/

If you scan your computer the virus will be destroyed.

I had the same problem and someone on the Geek squad told me to download something like a movie, album, and that would help. That was with my old computer that me and my cuz are working on so if it works I will tell ya. U cal also call the geek squad at best buy and they will help ya--even if you didn't buy it there. or jus give it a shot of penicillin to git rid of that virus lol

Unknown Trojan is an stressful message generated by applying some rogue anti-spyware products to attempt and trick you into figuring out to purchase the remover. they're going to popup alert: “gadget blunders! Your laptop grew to become into contaminated by applying an Unknown Trojan. It’s risky to your gadget (extreme records may well be lost)! click alright to get carry of the antispyware application to bathe your laptop! (counseled)”. --- attempt instruction manual removal instructions

Sounds like a scam to try to get you to DL a program that WILL put a virus on your system.

If your other AV programs are telling you you're safe I would bet you are.

vundo or smitfraud.

http://www.bleepingcomputer.com/forums/topic18610....

http://www.bleepingcomputer.com/forums/topic17258....

http://www.majorgeeks.com/RogueRemover_d5360.html