Configuring Window Firewall.

Step-1  Press Window Key + R.

Step-2  Write Control Panel.

Step-3  Click ok.

Step-4  Search Windows Firewall 

Step-5  Click on Turn Windows        
             Firewall on or off (Left panel).

Step-6  Click on Turn on Windows
              Firewall (Home).

Step-7  Click on Turn on Windows
               Firewall (Public).

Step-8  Click on ok.