What you don't see talked about much online (my posts usualy get deleted, so I see why) is that most large internet corporations are owned Mafia, and when I new successful company rises up, they buy it. Almost all Pron is owned by mafia, usualy made from captive women & children in Russia or Eastern Europe. Large amounts of free spyware/antivirus software is created by mafia, household names & unsafe against the manufacturer, who create the kind of viruses etc. which you are trying to clean off your computer to begin with. About the only non Mafia serious corporation is Microsoft, which is under continual attack from them, the reason you need continual security updates.