+1 for Malwarebytes. Our media computer (an old XP box) is constantly getting bugs. Usually SpyBot S&D takes care of it, but recently we had one I couldn't get rid of. Malwarebytes got it, but it took a couple of scans. Good luck with the computer repair (or purchase of a new one). Try to avoid free-service sites (other than JoeDios , because a lot of advertisements contain trojans & viruses.