among freeware Avast, AVG, Avira
Answer:
IMO I’ve tested many antivirus lets speak about freewares:
Avira AntiVir: Excellent antivirus very less on memory excellent engine very high detection rate can be compared with any paid antivirus. Though due to its very sensity engine it may create at times false positives over all it is very good.
Avast 4: Again very good antivirus has a good detection rate the best part it provides so much features like Anti-spyware, Anti-rootkit, P2P and IM Shields, Network Shield, Web Shield which even many paid antivirus dont have in them :D. So it is also a very good option. The detection rate is also very good a bit inferior to AntiVir. ANd yes needs less resources 
AVG: Well after seeing the above two antivirus one will say it a crap the reason is its poor detection rate as compared to free and paid ones :P. The new AVG has an installer of abnout 45 Mb as compared to NOD, AntiVir, Kaspersky and Avast which are one of the ideal know for thier performance 
ClamWin: Good antivirus the ideal part is its opensource It uses engine of ClamAV and has a very good scan engine tough the problem is this that It doesnt have a resident shield and scannibng is very slow
All these antivirus can be downloaded from here >> http://www.filehippo.com/software/antivi…
In paid there is very tough comption between Kaspersky and NOD both of them are fast and furious so you can get any of them
Answer:
this is the best software for your needs you wont find a better one than this and dont get norton or mcafee because they’ll sloy down your pc guearnteed. get this software heres the link trust me you wont be sorry first get the trial version and then see how viruses you have so heres the link
http://www.pctools.com/spyware-doctor-an…
this software has tons of awards and email me so i know if this is the one heres my email singh_navpal@yahoo.com
Answer:
use this antivirus for more protection without any problem..
Kaspersky World wide web Security 2009
http://www.kaspersky.com/internet_securi…
Answer:
kaspersky is the ideal. has got all the features like antivirus, antispam, antispyware, self defense, web scanner and registry guard and much more. takes less ram and gives more protection. just try it once and surely you'll enjoy it.
Answer:
I use AVG Edition as it is the best virus checking software. Also put up Macfee Spyware that also counter checks ur personal for spyware. This gives your personal the ideal possible virus and spyware protection.
Answer:
i suggest kaspersky world wide web secrity, and it includes a firewall, anti-virus and other products itself,
have a free try, and hope it can help
good luck
Answer:
You can try out this software www.search-and-destroy.com - found some
adwares and several spywares, keyloggers and trojans on my computer. I’ve
also tried some other antispyware softwares but this one was by far the
best.
Answer:
its easy to download avg anti virus, which effective to fulfil ur stipulations, and its options to auto scanning with specific period u like.
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I use avast antivirus. The software remove all viruses from my computer. so u also this antivirus.
Answer:
avast is the best antivirus for all operating system.just install and be tension free.the web site is http://www.avast.com/
Answer:
I like AVG free edition. You can get it by Googling “AVG free edition” I don't feel like finding the actual url…
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Norton Antivirus 2008 full pack!
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Kaspersky, Avast, AVG, NOD 32
Answer:
mcafee is the best or you can use norton
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Kaspersky. But I’ve Trend-micro and it's okay.
Answer:
ESET Nod32
Answer:
among freeware Avira , Avast, AVG are amonge the ideal
Answer:
ESET NOD32 from http://www.eset.com