I was just doing my stuff on my Computer and suddenly I see this message from "Avast Free Antivirus" and it says "Thanks for installing (our stupid) Avast Free Antivirus Over 400 million users trust Avast to protect their computers and secure their privacy. (What about the other 7.6 billion people?)" anyways I don't want this (stupid) Anti Virus, can someone help me get this thing off forever off of this PC, Also this is the second time it happened.