Mario

this virus thing kept popping up telling me that i had a virus when i didnt, it kept popping up and wanted me to buy the full version, i said no and it kept coming back, so googled what the program was and it said that it was a fake virus remover and comes through a trojan, so then i go on another website to tell me how to get rid of it and its told me to go onto MSconfig and disable CAU ? i rebooted my computer and it was still there, then re enabled it and i cant get back onto it,
and then i try get on internet explorer and mcafee and its saying open with internet explorer its asking me to download them again when i dont need to ? whats going on. my laptop isnt working so im on dads thanks