My Computer keeps freezing!?

So I was being totally retarded the other night and going through random websites and suddenly my computer was infected with some kind of virus thing with spyware and whatever. I don't know what's wrong with my computer, so I try to go to system restore, but system restore is infected and I can't restore anything :c. I just got a pop up telling me that spyware is infected or whatever. What's that mean and how can I fix it :c... I'm like freaking out :'c. _____________ satellite tv for pc