Spybot - Search & Destroy

Spybot - Search & Destroy is freeware which detects and removes adware and spyware .I would say this is one of the best adware and spyware detection and removal tool .
SpyBot displays a detailed and easy to understand report before it deletes any files and allows you to deselect any item that you do not want to be processed.
This program has many features
1-Recovery
2- easy to use
3-multi-lingual
4-Fast support

ZoneAlarm 5.5

ZoneAlarm a product from Zone Labs (A check point company) .There are two versions available for download-Free And Premium.
This firewall will help you to keep extenal intruders from getting inside your network.Initially it can be annoying as alert window pop-ups frequently but it is really a good and promising one against the commercial products in this category.

Security Links

To see SANS Top Ten Most Critical Internet Security Risks go to http://sans.org/topten.htm .It also publishes vulnerabilities,resources for training and tips for hardening Operating System.

Symantec's Antivirus Research Center website at http://sarc.com includes a comprehensive database of all known viruses.

CERT has extensive information ,including alerts ,information on vulnerabilities ,patches and so on at the organizations's website
http://cert.org/


Checkout http://microsoft.com which gives the latest news and updates on viruses and malware.