Other topics about Using Windows
Open Windows Firewall. To open Windows Firewall, open Control Panel, and then click System and Security > Windows Firewall.
From the right column, select either Change notification settings or Turn Windows Firewall on or off option.
You may select one of the below options:
Turn on Windows Firewall - this is the default and recommended option.
Block all incoming connections, including those in the list of allowed programs - this is not a preferred option.
Notify me when Windows Firewall blocks new program - this option blocks new program and notifies you, so that you can choose to block or unblock the program after reviewing it.
Turn off Windows Firewall (not recommended) - this is not a recommended option. Turning OFF Windows Firewall might make your computer (and your network, if you have one) more vulnerable to damage from viruses.
To restore to default settings, select Restore defaults from the fight field and click on the Restore defaults button.