firewall complete folder

A third-party firewall is recommended because they can be more user friendly when it comes to automatically approving known programs.

The WFC scenario I was talking about is when you change the Windows Firewall setting for outbound connections from the default allow to block. You would only do this when you want full control of everything that connects from your PC.

In this scenario it can be very difficult to configure the firewall rules without the help of a program like WFC. Depending on WFC settings you can get alerts for every blocked connection, and from that alert customize it(protocol, port, remote address etc) and create either a temporary or permanent rule. In the alert you can see exactly what connection(s) a program tries to establish, see if and who has signed the program, and you also have options to check the file on Virustotal, get info on the remote IP, check it for blacklistings etc.
Without WFC and only using Windows Firewall, the user gets no help what so ever with this.

But as I said before: This is an advanced task and only recommended for experienced users.

PS. There is another program out there with the same name so to clarify: I'm talking about Windows Firewall Control by BiniSoft.

Yes, but normally you shouldn't have to do that. The usual configuration for these kind of things is to block everything and only make exceptions for what you want to allow.

If you allow everything but add a block rule for all files in a certain folder, then any new files in other folders will probably be allowed to run. But if that's not a concern for you then you're fine.

Same as Windows Firewall then if you block all outbound connections as default and use WFC to alert about every blocked connection

If you're happy with the third-party firewall then stick with it. But just to explain: you can allow/block exactly what you want with Windows Firewall. The most important thing to know about Windows Firewall is that it's default setting(unless you change it) for outbound connections is to allow all connections.

Windows Firewall with default settings is only set to block inbound connections, but allow all outbound. If you change the setting for outbound from allow to block without using a program like WFC, you most likely can't connect to the Internet from your browsers and probably not even check for Windows Updates. (I can't remember the exact default rules because I tweaked them)

If I can use the full potential of Windows Firewall with the help of WFC then I prefer that over a third-party firewall. But again, that's just my opinion. Third-party firewalls are probably easier for the average users. I just wanted to explain how Windows Firewall works and hope that it can help someone who reads this.

You're welcome! And good luck with your new firewall. It's generally a good idea to stick with what you think is the easiest solution :)