That’s one of the problems with the windows firewall " not very user friendly " I don’t know whether one of the windows firewall add-on’s would help in this instance but better still would be a good third party firewall that provides much more configuration and ease of use ( Private Firewall, Online Armor, Comodo ) for free versions or Outpost for a top paid solution if you’re not wanting to use the avast firewall provided in their Suite.