用Ad-Aware(free)杀Spyware,还有

go to www.download.com find Ad-Aware, it is a free software.
"google bar","MSN SearchBar" can block pop-ups, but if you hate having those bars like me. Try "Pop-Up Stopper" (free software) to stop it. Those can be found at download.com. Just beware sometimes there are site have pop-ups that u actually need, just besure to turn those pop-up blockers off when u click on some link and nothing happens.