For me Avira is beter, its cleaned-up some of leftover viruses after i suspect avg's was helples to some, i dont know, its only my personal expriences after using norton, mcaffe, pccillins, and avg, now for years to come its an avira, by time i think there always some getting better or fades, hope thats helpful.
for sure kaspersky antivirus is the bestin the free section, you can try avira and avg . great options
AVG has a great free antivirus program.free.avg.com/Avira is comparable as well.www.free-av.com/
There are many great antivirus programs . I prefer Avg Free (or payed version) PC tools Spyware Doctor Antivirus+antispyware Or Avast Avira is also a good option
avira avg karpesky http://guides4internet.blogspot.com/ for free downloads
you can go head with AVG,avast,AOL antivirus shield.......
The best one is this htt ps:// yazing. com/deals / avg/ zoomtheworld (remove the spaces)
COMODO,AVAST,Kaspersky,NORTON,AVIRA,MCAFEE are big anti-virus company's in the world.
Avira AntiVer,Clamwin,Avast Home edition,AVG Free edition
AVG 8.5 Free, AVG Internet Security, Trend Micro Internet Security, Panda Antivirus, Avira Antivirus, Malwarebytes, F- Secure, Comodo, Windows Live Onecare, Norton Antivirus, Threatfire Antivirus
AVG Microsoft security essentials Norton 360 Trend Micro Kapersky Macfee Avast Avira
You can find a free Anti-Virus download from Avira Free Antivirus 2012 and AVG Anti-Virus Free 2012. They both detected 88 percent of the current set of malware threats.
There are lot of better anti virus softwares ar available. 1.avaster 2.avira