Windows have built-in Firewall, but with limited features. There are several third-party firewalls you can use, which have more functionality than Windows.
Iolo Personal Firewall is one of the best in this category and its proprietary IntelliDefense system takes out the guesswork normally associated with firewalls by using a comprehensive database to automatically decide which programs are safe and which are not. More details...
Features and benefits:
- Proprietary IntelliDefense eliminates frustrating prompts using automatic program classification technology
- Always-on protection that runs transparently in the background
- Hassle-free setup protects your PC from the moment of installation
- Stealth mode makes your PC invisible to hackers
- Does not interfere with full-screen games or other software
- Intuitive interface makes protecting your PC easy
- Extremely efficient technology does not slow your system down