How can I get rid of malware/ spyware?

Jondar

I had some annoying virus on my computer called "internet security 2010" it would give me annoying pop ups adn try to make me buy it also kept played radio clip from different stations(it was so weird one second it was classical the next it was Taylor Swift" and it kept me from googling stuff because when I clicked on the links iit would take me to a site like mickeymousecruises.com. Now I believe I've fixed all that except my search engines still do not work. How do I fix it?  <a href="http://unlockiphone22.com">unlock iphone 3g</a>