What is some good software (preferably free) to remove adware / spyware?

My computer still works but I some annoying malware installed. Also, I have Norton 360, but whatever were unable to work properly.

To remove the software spies, there are many solutions exist, all with their own strengths and weaknesses. You had better install at least 2 antispyware Top 5 anti-spywares reviews, of comparisons and download links on http://www.anti-spyware-center.com/ You can download and analyze your computer for free.

Anti Trojan Software For Free