That happened to me a few weeks ago. I had to pay $80 to have it removed from my computer. It's a shock when it comes up and takes over your computer claiming to be the FBI because pornographic siteswere are viewed. They are so thoughtful though in saying it can be fixed by going to the store to get a money order of $300 and they will "forget all the charges":-P The computer store said that has been going around for several years.