Eset antivirus 64bit in laptop

Acer aspire one,1GB RAM

I want a free antivirus software for my laptop 'coz I'm feeling that my laptop contains viruses comes from my internet. Can you help me find a free download? Thanks!

Spyware preventer, windows anti virus 2008, advanced anti virus,ultimate antivirus I have all three of these things on my computer and there ruining it, I had a couple others that were just as bad in the scene of "pop ups" but much easier to get rid of >control panel add remove programs and...

I have purchased new compaq lapton.They have provided me with preinstalled norton antivirus but I am having problem with norton updates,as I have tried it many times but it is not getting updated.I want to know which is the best anti virus for my laptop,is there any other way to update my norton...