Click the Settings menu.
Click the Add profile (+) icon, and go to Firewall on the left side of the window.
Select the Apply the following settings to the firewall checkbox.
Select if you want to enable the firewall for Windows workstations and/or Windows servers.
Select the type of network to which you are connected. The configuration will be more restrictive in the case of a public location and more flexible if it is a trusted location.
This is the type of network you will find in cybercafes, airports, etc. Visibility of computers will be restricted on such networks, and there are restrictions on sharing files, resources and directories.
In this case we are generally talking about office or domestic networks. Your computer will be perfectly visible to the other computers on the network. There are no limitations on sharing files, resources or directories.
Click OK.