I have had a few problems with this. I will be on a completely harmless website, such as Youtube and suddenly Java 6 will start loading and then a fake anti-virus or a fake anti-spyware program will open up and I can't open any programs and it will tell me I have hundreds of viruses and that I have to buy their program, or some will even pretend to be from Windows Vista. What free progams can I use that will stop these from attacking me? I have Malwarebytes, AVG, and Spybot: S&D. What causes these? I don't even go on bad websites and I get these.