The Best Free Firewall for Windows XP

Written by erin mcmanaway
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The Best Free Firewall for Windows XP
Protect your computer with free firewall software. (computer virus image by Marina Bartel from

New viruses, spyware and security threats to computers are discovered on the Internet every day. Likewise, new software and upgrades to existing software are continuously developed to combat these threats and keep computer users safe. A firewall is software that provides protection by blocking unwanted outsiders from gaining access to your computer. While Windows XP has a built-in firewall, there are a number of free firewall alternatives.

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Zone Alarm offers four modes of protection: firewall, Internet lock, application control and zones. It also features a "game mode" that allows you to automatically accept or decline outside connections while you're playing a game, so that you don't need to stop to accept the connections manually.

Online Armor Free

Along with basic firewall security, Online Armor Free also offers protection from keylogger software, malicious scripts and worms. Another highlight of this software is the "run safer" option that allows you to set certain risky programs, such as browsers or instant message programs, to run as a limited user.

Agnitum Outpost Firewall Free

Agnitum Outpost Firewall offers a number of features such as proactive protection against malware, tools that automatically assign proper usability policies for programs, the ability to prevent illegal terminations, and a network statistics monitor. This program offers flexibility, simplified alert messages and user-friendly configurations that don't require manually entered trusted rule sets.

Ashampoo FireWall Free

Ashampoo FireWall boasts an easy interface to help the average user set up firewall security for their computer. The program installs with most of the settings already in place, but users can manually configure settings for different programs to meet their needs.

PC Tools Firewall Plus Free Edition

PC Tools Firewall is a powerful and highly configurable security software. While this program does come with a number of preset configurations, it's a system that caters to more experienced computer users. It also offers a "full screen" mode that eliminates pop-up notices that may interfere with programs that run in full-screen mode, such as games.

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