With cyber threats escalating, equipping Windows computers with robust firewalls is essential. The post details top free firewalls, highlighting their features, benefits, and guidance for configuration. Comodo, ZoneAlarm, GlassWire, TinyWall, and others are reviewed. Besides core functions like threat detection and customizable controls, the significance of complementing antivirus with firewalls is stressed. Free options offer strong security measures to safeguard against hackers and malicious software, providing users with powerful alternatives to premium security solutions without incurring costs.