I am running in safe mod because I can not in regular startup I have a virus and avast is saying I am secure so I checked around and found stop zilla and allowed them to do a free virus check and they say that I have 30 viruses I do not believe that, anyway they want my credet card number and a fee to get rid of them I need avast to help me. And on top of that I can't get window update it will not work. What do I do?