How to: Firewall Filtering
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**Firewall** is a system that provides network security by filtering incoming and outgoing network traffic based on a set of user-defined rules. In general, the purpose of a firewall is to reduce or eliminate the occurrence of unwanted network communications while allowing all legitimate communication to flow freely.

[GlassWire](https://www.glasswire.com/) is a personal Network Traffic Monitor and Firewall. It instantly see your current & past network activity. Detecting malware, and block badly behaving apps.
[Simplewall](https://www.henrypp.org/product/simplewall) is a simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer. It's not a control UI over Windows Firewall, and does not interact in any level with Windows Firewall. It works over Windows Filtering Platform (WFP) which is a set of API and system services that provide a platform for creating network filtering applications.