if you're looking for a free AV program, go with AVG, it's good and pretty easy to use. It caught alot of things on my computer that norton didn't once I got rid of norton. I just got rid of AVG because I found kaspersky and heard great things about it and bought it, it was pricey but well worth it. I think AVG uses an older kaspersky engine but could be wrong. I really like AVG and recommend it to alot of people who are looking for free and solid AV protection.