To remove spyware you need to download a reliable spyware removal program.
Spy bot search and destroy or adaware are two but there are others.
The spyware removal tools get rid of most of the problems but for the few which they cant remove you should be able to determine the name of the problem program and then search the web for a tool dedicated to particular programs for example antivirus 2009 is one which has a particular removal tool to get rid of it.
There are many others but the best sites to look up information are the anti virus software sites and look at their threat analysis pages.
Good luck
Have some good internet security like Comodo installed in your pc
a. Adware or spyware
Adware and spyware both fall under the much broader category of malware.
http://www.antispywaremechanic.com
One can find spyware removers for adware online at various websites. One can find spyware removers online at websites such as CNET Download and SnapFiles.
Due to the many issues that people have with spyware there are a wide range of options available for download to prevent and scan for spyware adware. Some of the many options include Ad-Aware, Spybot, Hijack This and Spyware Blaster.
Q-tip software scans for unwanted spyware and adware on a computer. The security program gets rid of all unwanted data.
Install a spyware remover program or install AdAware.
There are many excellent and helpful programs that help with the removal of spyware and adware. These programs include Malwarebytes and Norton Security Software.
AdWare and SpyWare
One can learn about adware and spyware removal by visiting virus removal program websites, and looking in the information section. When doing a computer scan, one has the option to choose to remove spyware programs.
Zwinky installs adware/spyware on your computer, though it probably does not have an actual virus. Some of the adware/spyware it installsmay be difficult to get off your computer once it has been installed.