Comodo Firewall
The Download Now link will download a small installer file to your desktop. Remain online and double-click the installer to proceed with the actual download.
You're most likely also utilizing Windows Firewall if you're using a reasonably current version of the operating system. It works well, but there's no excuse not to use far more powerful (but equally free) firewalls, especially when they're more user-friendly and provide substantial extras. Let's use Comodo Firewall. This feature-rich, multilayer firewall application analyzes new programs and data using data from the cloud to thwart assaults, including zero-day attacks. It guards against worms, Trojan horses, viruses, hacker attacks, and other dangers to your system. Additional features include access to the SecureDNS network, Geek Buddy, and Comodo Dragon, a quick and safe web browser.
Comodo firewall app logo download