You can download a 64-bit Windows 7/Vista/XP SP2here
A firewall is essential to protect you from intrusion and unauthorized connections to the Internet by your software.
Here is the latest version of Comodo Firewall
for Windows, a free personal firewall offers the most features of a proprietary software:
- Validation of components of an application before allowing it to connect to the Internet.
- Alerts with security levels.
- Recognition of Comodo Firewall by Windows XP SP2.
- Protection against process shutdown to prevent Trojans, Spyware or viruses from acting freely.
- Securing your computer startup (boot).
- Automatic Updates.