Help, Please. Virus in my computer. Don't know wat to do?

Last week, I noticed that I had virus in my pc. I went to download.com. got some antivirus program, and they not helpping much. I don't really want to buy a package antivirus thing. I got Avg..somthing..and dr.spyware thing...with the doctor outfit..thing. that one is helping. it's blocking them now. But, whatever was there before has not all been deleted. it's says I have the trojan virus, black trojan virus...so many crap. Do I need to bring it somewhere to have it check. or is there something simpler and cheaper I could do. I cant even go in the net much. so much of pop up.... something about live online help...everytime I deleted from desktop, it comes right back. I just don't get it. it has like a blue and red shield...

Please Help....my friend has told me, zernon or zelnon...something like is good. bt I can't find it anywhere....

Help, Please. Virus in my computer. Don't know wat to do?virus scanner

You have a number of things wrong - there is no virus called black trojan virus - its called blackworm virus - this tells me you have vundo.

Here we go:

1.run free vundo removal tool:

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

2.Run smitfraud removal tool:

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

3. turn off system restore %26 do a free online scan:

http://www.bitdefender.com/scan8/ie.html