The TechZone has posted a How To on removing Adware and Spyware.
If your computer runs slower than normal, or you are constantly bombarded with popup ads, then your system probably has spyware installed. Spyware is a software that runs on your computer, and can do many types of things. Spyware can come in the form of a tracking cookie that informs its creator of which websites that you visit, or it can be a software that gets installed that serves popup ads to your computer to try to get you to visit other websites.How To Remove Adware And Spyware