What is a good FREE virus scanner that i can install in my computer?

I'm having computer issues and need a good virus scanner that you dont have to pay for, and is there any other scanners that might help the performance of my computer.

Answers:
Well 99% of people here will suggest AVG. I'm in the 1% that will say AVAST Home FREE
http://www.avast.com/eng/avast_4_home.ht...

Having used both, Avast far out performs AVG
With full automatic updates of both Virus definitions and Program updates. you can't go wrong for FREE.

AVG is still good ...but not as..
AVG makes the best free anti virus. There is also one called Anti-vir. If are looking to just clear viruses, you could download a trial of one of the paid versions. I would recommend downloading a trial of Kaspersky 7.
Or you could try ClamWin...although its very slow.
Use:
Avast AntiVirus
www.avast.com
------------------------------...
AVG Antivirus
http://free.grisoft.com
------------------------------...
ClamWin
www.clamwin.com
Just run behind AVG FREE.. Its ths BEST
i personally belive that panda is good and also zone alarm but what ever anti virus you install be sure to upgrade it with internet first then use it.
Udate your antivirus and scan your coputer in safe mode. After you remove virus, I recommend you use firefox browser. It is safer than IE. It can prevent viruses such as worm,trojan and etc. The newest official edition of firefox can be downloaded from http://www.mollzia.com

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