Mc-afee is worthless trash, Norton not so bad.Panda is Good, but Kaspersky is the best antivirus on the market. I have tried a ton of them and you deffinately get protected w/ Kaspersky. I have not ad a virus attack scince I have had it and it really does not consume a ton of resources to lagg out your computer. I have gone to websites and Bam! the alert pops up. they are what you would consider safe sites that have viruses embedded. For those of you that love to d/l cracked software, alot of the cracks contain viruses as well witch are easily missed by most antivirus. I am somewhat a computer nerd I guess and love to try things, and so this is all off of experience that I speak. My 2 cents...