I can't access any programs on windows 7

[DJ4rk4ngel30]

Hello, i'm mike and I can't access any programs. I have a dell optiplex gx280, 1 gig ram, intel 4cpu 2.40 ghz 2.29ghz. I think I have a virus, but can't access any programs at all, I get a window that says " Choose the program you want to use to open this file:" I can't even open my anti virus software or even get on the internet. I'm a DJ and use the comp for work, any help?

 

[mubin]

What anti-virus do you use? Anti virus like macfee can clean computer after virus affected. If you cant get macfee or it cant help you then you need to reinstall windows.

 

[Emerald]

http://forum.bitdefender.com/index.php?showtopic=5425

then run

TDSSkiller and Malwarebytes in this order