I'm not shocked to hear people recommending AVG free edition, but I am shocked to hear a PC repairer installs AVG free edition on his/her client's systems. Although it's a perfect way to have them come back sooner than later due to more infections, but that's not a good business ethic is it?
Two of my friends who are in the computer technician business would never recommend AVG free edition because, frankly, it's crap. I'm know I've just offended all you AVG free edition fans out there and I'm sorry for that, but AVG free edition is free for a reason.
One of these computer techs strongly stands against AVG free edition because it's normally on every client computer that came into his shop for a repair or disinfection. He strongly stands by Norton anti virus provided it's configured correctly, the other computer tech, well I don't know his preference but I know it's not AVG free edition.
Since I am now in the IT industry myself with the agenda to develop a strong portfolio of top grade software, I had undertaken my own extensive research into what the best anti virus product on the market today was. I used foremostly AV-Comparatives.org . Go there yourself and apply your own interpretation on their unbiased independant results. You will see Eset NOD32, Kaspersky, McAfee and Bit Defender, and more, consistently performing better than AVG (the non free edition).
You should really read this article:
Other AV evaluation and certification sites you may want to look at are:
These links will provide you with invaluable antivirus performance knowledge. Oh, and the AV product I chose was Eset NOD32. It's scanning is faster, uses true advanced hueristics, and all with very little or barely noticable 'footprint' on an old 466Mhz computer's system resources.