OK, if you are here, you were probably trying to configure your Windows firewall, and maybe something went wrong somewhere and you messed up ! In such a case, you may want to restore Windows Firewall to default settings with Advanced Security. 

If you wish to reset your Windows firewall settings & rules, to its defaults, you can do so, as follows:

Type Windows Firewall in start search and open Windows Firewall with Advanced Security. In the tab bar, click on Action and select Restore Default Policy. If  a prompt appears, click Yes.

Do remember that, when you restore it to its default settings, you will lose all your custom settings & firewall rules. Group Policy applied rules & settings however will not be disturbed.

Before re-setting the firewall to default, should you wish to backup your current firewall settings & rules, you can do so, as follows:

In the tab bar, click on File and select Export Policy. Save the file as a .wfw property sheet.

This will allow you to restore , using the Import Policy option, your Windows 7 or Vista firewall settings if you feel the need.

If you have liked this post, you might want to check out some more, on topics like Firewall.