Free Anti-Virus Softwares File Name: Microsoft Security Essentials File Size: 8.38 Megabytes Description: Free Anti-Virus for Windows XP Home/Pro SP2 or SP3. Windows license must be genuine prior to installing. This is a great anti-virus product released by Microsoft. Download File File Name: Avast Home Edition - Free Antivirus 4.8.1367 - Release - Dec-16-09 File Size: 269 Kilobytes Description: Free Anti-Virus for Windows XP Home/Pro SP2 or SP3. This anti-virus seems to be a memory hog but has more features than AVG/Microsoft Security Essentials. Please keep in note that in may block inbound/outbound connections which may cause mail/apps that rely on TCP/UDP to not work properly. Download File File Name: AVG Free Edition 9.0.716 File Size: 75.6 Megabytes Description: Free anti-virus for Windows XP Home/Pro SP2 or SP3. This anti-virus is great for home users. Make sure to disable incoming mail certification if you don't want it to change mail format from HTML to plain text accidently. Download File File Name: Avira Free Antivirus 2012 File Size: 78.9 Megabytes Description: Another good free anti-virus. Download File