   Which Antivirus.
  I am considering buying a new AV since Norton 2004 behaved not like it supposed to for a friend. What AV software you suggest in purchasing? I have read that Kaspersky is good. Of course there is PC Cillin and Panda.   
  Well Norton and McAfee are the most popular AV programs out there.  Have you tried McAfee's antivirus?   ;  AVG by Grisoft. They have a free edition which is very good. They also have a professional (~$44) edition which is even better. We used to use Norton exclusively at work but we've since switched to AVG. It's that good.   ;  I strongly recommend PC Cillin by leaps and bounds. First, and one of the most important points, is that it is a firewall and a virus/spyware scanner in one. The other AV programs generally require additional payment for a firewall or even a spyware scanner. PC Cillin also has significantly less overhead than the other AV software such as norton/symantec. All in all its a big win.You can also google for "antivirus reviews". Most reviews will also place PC Cillin at the top. This coming from somebody who has a corporate license for all symantec products ( meaning I get everything they offer for free ) but decided to uninstall them and buy PC Cillin.   ;  With McAfee, every tiem we start up the computer, there's this annoying popup that always comes up when someone logs in and have to wait until its done to do anything.  When I've used Norton before it doesn't do anything of the sort.  I'm interested in PC Cillin, does it do this popup thing?   ;  I use Nortons and I keep the automatic live update on. That way, I don't have to worry about updating the virus definititions, it just does it automagically.AVG is also great, even the free version.McAfee can suck eggs, I had that for a while, and I hate it.   ;  For the record, I use McAfee's virus scanner on 98SE. It sucks. Badly. Locks up the system whenever you view a folder with EXE's that it "doesn't like" (read: it's too stupid to handle properly.)I can't speak for it on NT-based OSes, but on 98 it sucks.Have you just considered the "use common sense" approach to viruses?   ;  I got Norton about a year ago and I decided that I didn't want to pay for the subscription (the first year is free). I still want run it but everytime I start my computer, I get a pop-up asking me if I want to renew my subcription. Its very annoying!;  Norton and McAfee are practically the wost you can get. They have poor detection abilities, lacking definition libraries, and generally aren't very nice to the PC they're running on.Antivirus Software - what' the best - worstIt seems BitDefender and Panda Software AV are the two finalist, with AVG(free version) in third.JohnBolton: It really isn't worth running an AV unless you get the updates. If you aren't getting the definition updates, it isn't worth it at all, and if you aren't getting the engine updates it is of questionable value.New 'viruses'(I use the term lightly - hasn't been a 'real' virus in years and I shudder to think how much damage such a beast could do) are constantly produced that not only require new definitions that fit in current engines but also engines that can handle new kinds of definitions to detect them.   ;  I use Kaspersky Antivirus.  Kasperksy's got an excellent scanner (a little on the slow side, though) and does a good job of finding unknown viruses too.  It's saved me several times now.I've used several different types of AV software in the past, and I've found that Kaspersky and Panda are among the finest.  Whichever one you choose: avoid Norton like the plague. After installing Norton I had to later reformat because it "attached" to my computer like a leech.   