Today I purchased Avast Internet Security for my computers. One PC is 14 years old and operates on XP. I needed a cheap solution to the problem of no more security updates for the OS. So I purchased the standard protection 3-pc's for a year and upgraded the one that is for my XP pc. Everything went smoothly for the old XP pc. But when I went to install it on my laptop (Windows 7) Microsoft could not open the license file --- strange I thought --- so I called Avast tech support --- the tech remotely checked out my computer and discovered all these crazy files, errors and just plain CRAP on my computer --- she says "No problem, we have Microsoft experts here that will fix it for a charge." --- WELL they wanted $179.00 for a YEAR or $119.00 for the quick-fix!! HOLY CRAP!!! Not exactly the kind of fix I had in mind LOL -- so I went and searched for a registry & malware cleaner --- FREE --- ran it (ccCleaner) 2X --- went to my 30-day trial installation on my desktop opened it --- went to the license file in my downloads --- right clicked and chose to open in the Avast program --- VIOLA!!! DONE!!! :-D