Windows Defender Firewall


Portable version available: 

There is no portable version of this product available.

Our rating: 

License type: 

System requirements: 

Windows 10

Program function: 

Firewall product, protects incoming and outgoing internet connections

Download file size: 

Built into Windows



Additional information: 

Product is built into Windows XP and higher, not available for separate download. Recommendation primarily focused on latest iteration, Windows 10

64 Bit compatibility: 

32 and 64 bit versions available

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Review article: 

Best Free Firewall - Basic


Built in to Windows, no separate installation needed, simple and easy to use, effective, passes all tests, no nagging or annoying pop ups, runs seamlessly and quietly in the background, significant improvements since initial version in XP. Current iteration of Windows 10 is now called Windows Defender Firewall, which is suitable for most day to day users.


Primarily incoming connecting protection only. Advanced user interface is not user friend - this interface may not be suitable for beginner users. For advanced configuration, pair with a third party tool such as Windows10 Firewall Control. Basic protection which may not provide adequate protection for "high risk" users

Product type: 

Runs as a stand-alone program on a user's computer

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