What is a good, free, Anti-Virus that I can download?

[mbl]

I've found i had a virus, and i would really like to get rid of it, but i don't know what to get. I usually use my computer to play Facebook and watch YouTube videos, I don't know if it will help but hopefully it will.
Thank you I just got anvi and im doing a cloud scan thank you SO MUCH!

[Takkun.]

AVG anti-virus.
works fine with me.

[noisykite729]

Avast is good.

[sillylawyer960]

Try McAfee I have it and it works pretty damn well. I'm pretty sure it's free. Or try AVG

[Caleb]

if you can go to cnet.com. they review a lot of programs and stuff

[RSY]

Comodo is one of the best. I use it on my 3 computers at home.
http://www.comodo.com

[Søren]

If you have Windows 7, i would recommed Microsoft Security Essentials.
If you dont, i would go with AVG.

[Butch]

Keep 2 on your box.

1) Microsoft Security Essentials - Realtime Protection, Free, Small footprint, Self updating.
http://windows.microsoft.com/en-US/windo...essentials

2) MalwareBytes. - Free, update and scan when you want to. On Demand.
http://www.malwarebytes.org/

Both are great together.

[Chip]

McAfee is NOT free. they may have a trial period but they do NOT offer full services for free.

AVG Free is good for overall protection, that's what I use on my windows machines. Since you suspect you're already infected you might also want to download MalWareBytes - the free version doesn't offer any active protection but it's highly effective at rooting out bugs after the fact.

[Menno]

I'd go for ClamAV Immunet, a cloud based virus detector, available for windows XP, Vista and 7. You can even make it work together with AVG, Avast, Norton, McAfee, MSE, Trend or K7, for even better protection.