I hope someone here has some input. I have a laptop with windows xp home that originally came with Mcafee anti virus. I used that for maybe a year and decided to go with avg free. I UNINSTALLED Mcafee using their uninstall tool. I then installed AVG free a couple of years ago. Yesterday, I went to update AVG and the update didn't take, read on forum to unistall AVG and reinstall it, which I did the way I was recommended to do so. Now AVG tells me upon install that it detects another antivirus on my computer, it strongly recommends that I uninstall this before proceeding. But other than Mcafee and AVG, there has never been any other antivirus software on this computer. I have a wireless router that has a built in firewall, High speed DSL with Windstream and the windows xp home edition firewall enabled as well. I have Spybot S&D, Advanced Windows Personal Care, Ccleaner. My laptop runs beautifully, there really are no problems. But it just bugs me that AVG says I have another anti virus and perhaps something could go wrong down the road.