https://dlive.io/video/polskilek/202292f0-6bcb-11e8-916a-1bdac5341254

1.Open the Control Panel
2.Click on System and Security
3.Click on Windows Firewall.
4.If the Windows Firewall is disabled, the Windows Firewall state will be Off. To turn it on, in the left navigation pane, click on Turn Windows Firewall on or off.
5.In the Customize Settings window, select Turn on Windows Firewall and click OK.