Fraud Resources
The following products are free for home users.
Antivirus
http://free.avg.com/
http://www.avast.com/
http://antivirus.comodo.com/
Online Virus Scanners
http://virustotal.com/
http://virusscan.jotti.org/
Firewall
http://personalfirewall.comodo.com/
Secure PDF Viewer
http://www.foxitsoftware.com/products/reader/
Spyware Removal
http://malwarebytes.org/
http://www.safer-networking.org/en/home/index.html
Security Tips
http://www.antiphishing.org/consumer_recs.html
Detecting and Removing Conficker Worm
http://support.microsoft.com/kb/962007