I am looking for the antivirus which should be potent enough to keep my system free from all viruses. I think avg is the best and that is why i have been searching for avg free edition. But as I downloaded avg free on cnet the file size was 2.03 MB and on other site it was 82.3 MB. So I do not know which the genuine version of avg is if someone have any idea or know where to download it. It would be great help. Thanks.