Alright...first you're gonna want to download this..
http://www.safer-networking.org/index.php?...n&page=download
that's spybot- search and destroy. SpyBot -- Search & Destroy (SpyBot-S&D) will find adware and spyware modules on your hard drive and remove them. When you run this program for the first time, you'll be shocked to discover how much spyware is on your hard drive. Detecting and removing spyware is only one of the many things this program can do for you. Here's what else it detects:
Key loggers
Some trojans
Internet dialers
Browser hijackers
Several other nasties you may have picked up in your travels through cyberspace
Just think of all the information this stuff's been gathering. Here's how to get rid of it:
Launch the program.
Click the Search & Destroy icon and Check for Problems. Spybot scours your system.
Peruse the list and uncheck anything you want to keep on your system. Entries in red are most dangerous.
Click "Fix Selected Problems."
Once these modules are removed the related programs could stop working. No worries. SpyBot-S&D lets you restore the programs to their original form with its Recovery tool. You can also use the new Exclude feature to exclude specific programs, files, and cookies from the watchful eye of Spybot. It's great if you have spyware you need to keep in order to use a program, as is the case with KaZaA.
after that, dowload this...
http://www.lavasoftusa.com/software/adaware/
Ad-aware...it removes ads also, some mstuff spybot didn't and whatnot
and after that..download this
http://www.javacoolsoftware.com/spywareblaster.html
it prevents spyware from even being installed in the first place
and the most important thing you should do is keep them UPDATED WEEKLY...if you have any Q's about them, just ask....
and also i hope you have a anti-virus..but I'm sure you do