Which is free the best antivirus and less heavy?

AVG

Which is free the best antivirus and less heavy?virus protection software

AVG is the best antivirus that has the lowest memory requirements...

Which is free the best antivirus and less heavy?adware

alternatives-windows malicious software removal tool and windows defender.
AVG Anti-Virus Free

http://free.grisoft.com/doc/avg-anti-vir...

I don't know of any other free ones that are this good and updated as often.
Listen to them AVG is the Best anti-virus software you can download the free version of it and give it a try with the link below.
AVG if free and its small but works grate i would try that. to find it just google it.
I like AVG best.
Nothing comes close to AVG Free.
Avg is free and protects your computer. You can download at http://www.fixyourcomputer.blogspot.com or Grisoft website.
antivir from free-av.com
I will give you Best one of all anti virus ...

http://www.bitdefender.com

This is the best programe i used it and i still used it.
Trend Micro's PC-Cillin.
AVG by far is the best for me It has found numerous viruses that Norton and Macaffee have not

here is the link to get it http://free.grisoft.com/doc/avg-anti-vir...