Avg...

[DeftoneSmoker]

For those out there paying for anti-virus stop!!! Avg is free and I have been using it for 6 years now and it has never let a virus slip into my computer. http://download.cnet.com/AVG-Anti-Virus-2012/3000-2239_4-10385707.html?tag=mncol;1

 

[SeaMaiden]

For those paying for software, KNOCK IT OFF! Go open source for Chrissakes and never look back.

https://help.ubuntu.com/community/LiveCD