Firewall is a software that scans inbound and outbound traffic from a computer that is connected to the internet. Firewall improves that security of a machine by categorizing and blocking unwanted network traffic. Spyware, bots, keyloggers, trojan horses and worms use active and unprotected internet connection on a machine to collect sensitive data and send it to remote servers. Windows itself have a Firewall. However, it is always recommended to use an advanced Firewall to enable full scale protection from new age malware. So here we have collected a list of the best free Firewall software for Windows that might be interested in.

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