My computer has some viruses on it. It won’t let me download anything, goes super slow, and will randomly restart. By wiping clean I mean wipe everything (pictures, downloaded things). Somebody help!

I did the defragment but its still doing very slow and freezing up alot more

I have a 2000 Windows XP – Also, I’m willing to spend some extra money to get this done.

If so, how do you rate it? I have windows xp and this is made specifically for that. thank you