anti spyware and anti malware

Almost everyone who uses a computer knows about computer viruses and anti virus software but not many people are aware of spyware and malware. spyware is like a virus which generally reches your computer through the internet . spyware can track th information entered by the user in various forms and login areas of emails . it can also record credit card pin no.s which the user may enter online. it can also be used to track the activities of the user on the computer. Thus it is better to avoid spyware from entering the system . it should be removed from the system to avoid troubles. It can be removed by using a good anti spyware which can scan and destroy spyware and tracking cookies. many can be found over the net. a few good ones are :

1.spware doctor . available on http://www.pctools.com/ and http://www.download.com/
2.avg anti virus free edition . available on http://www.download.com/

the latest version can be downloaded and can be updated from time to time.
malware can cause harmful changes in the system registry which can slow down and crash the system. it can be removed by the above softwares.