Download the program 'Adaware'
It removes spyware from your 'puter. I had 246 spyware programs, and after deleting those (adaware gives you their names and asks you to confirm if you want to delete them), the number of pop-ups decreased dramaticly.
Another option is 'popup killer', a program that records every popup u get, and u can put it on a 'black list', which make the killer to close them before they pop up.