FREE Ad-Aware Internet Security (anti-spyware and anti-virus program )

Lavasoft Ad-Aware Internet Security

BEST SOFTWARE in terms of security

gives you the power to combat the cyber threats of today — and tomorrow — protecting you from viruses, spyware, trojans, keyloggers, password stealers, and much more. With minimal strain on system resources and advanced anti-malware technology, Ad-Aware provides all the power you need to stay secure online.

Best of all,it has a free version! & paid complete softwares as well

For adaware free,try

http://www.lavasoft.com/products/ad_aware_free.php

Enjoy!