There is no need to buy costly antivirus programs. On the net several good free programs can be found. It would be wise to install at least two, since not one is able to detect all the viruses your pc could be infected with. My favorite combination consists of AVG / AntiVir.
AVG free edition >>>excellent<<<
http://free.grisoft.com/doc/Get+AVG+FREE/Ing/us/tpl/v5
AntiVir Personal Edition Classic >>>excellent<<<
http://www.free-av.com/
Avast Home Edition >>good<<
http://www.avast.com/eng/down_home.html
ClamWin Free Antivirus >>useful as a second opinion<<
http://www.clamwin.com/
BitDefender 8 Free Edition
http://www.bitdefender.com/PRODUCT-1...e-Edition.html
Then there are also these offers which might be useful:
Antivirus software & firewall protection
Get special offers from the following software companies for antivirus and firewall packages.
• Computer Associates
12-month free trial
• Antivirus
• F-Secure
6-month free trial
• McAfee
90-day free trial
• Antivirus
• Firewall
• Panda Software
90-day free trial
• Symantec (Norton)
90-day free trial
• Trend Micro
GO TO:
http://www.microsoft.com/athome/secu...s/default.mspx
Security Software: Downloads and Trials