I currently use TinyWall Firewall, it works very well, it's small/portable, no complaints I even donated to the Dev but I would really prefer open source, also it needs to be user friendly like TinyWall so my non-tech family members can/will use it like they do with TinyWall.
Update:
I just discovered that TinyWall is now FOSS, GitHub Link
If a very powerful, easy to config/maintain Windows firewall that is also now FOSS is something your interested in, I highly recommend giving TinyWall a try
OK, since this was my first post here I did not expect the conversation to get so lively. I appreciate every single input.
I thought my initial request was simple and clear with the words "non-tech" and "family members" but for the curious I will expand a bit.
For starters of course I am the "sys-admin" of my families tech life, my main personal PC is not Windows based but every member of my family is because every flavor of Linux I have convinced a family member to try has resulted in utter failure for them, sad but true.
They like the simple UI over the Windows firewall because I had no success trying to get them to understand/use the built-in windows version
"Easy" to block per-process out/in traffic
"Easy" to block ALL traffic, etc...
Having them understand/use traffic blocking at the app level has made all of them much safer/smarter users.
I start them with almost everything locked down, they open/monitor what they use, nobody shares a PC so this works perfect.
and finally for me, I needed Open Source so I can inspect the code for any tomfoolery, make any custom changes needed/wanted, and compile on my own. Free is never a requirement, I will always support the devs of software I end up using.
Thanks again for all the input, I read and followed everything, I was not planning on this much TMI but felt it warranted after reading the responses.
Does anyone know of a FOSS Firewall for Windows
I currently use TinyWall Firewall, it works very well, it's small/portable, no complaints I even donated to the Dev but I would really prefer open source, also it needs to be user friendly like TinyWall so my non-tech family members can/will use it like they do with TinyWall.