If you have had viruses in Windows,
you would do best to run the latest versions of

**RKill** to stop processes
by bleepingcomputer.
They have good guides on their site.
http://www.bleepingcomputer.com/download/anti-virus/rkill

**Hitman Pro** gives you a one time
free fix...and it scans over the net...
http://www.surfright.nl/en

and use **Malwarebytes** Free **Antimalware**
http://www.malwarebytes.org/products/malwarebytes_free

**Rogue Killer**
Heavy duty Stop Trojan Processes running
if rkill won't
http://tigzy.geekstogo.com/Tools/RogueKiller.exe
http://www.geekstogo.com/forum/files/file/413-roguekiller/
http://www.sur-la-toile.com/RogueKiller/

**Kaspersky TDS Killer**
http://support.kaspersky.com/faq/?qid=208280684
http://support.kaspersky.com/downloads/utils/tdsskiller.zip

Combo Fix...use with care
http://www.bleepingcomputer.com/combofix/how-to-use-combofix

**Majorgeeks**
which has often mentioned
a Puppy release has excellent downloads.
http://majorgeeks.com/

**Anti-Spyware**
http://majorgeeks.com/downloads31.html

**Anti-Virus**
http://majorgeeks.com/downloads29.html