How can I check if UPnP feature is working properly? (Windows 7)

Check if UPnP feature is working with the following procedure.

1. Click [Start] - [Control Panel] - [View network status and tasks].
   
   
2. Click [View full map].
3. Right-click [Gateway], then select [Properties].
   
   
   
   In case that the dropdown menu does not appear when you right-click [Gateway], "Network Discovery (UPnP)" on Windows 7 might be disabled, it might be blocked by Windows Firewall, or UPnP feature might be disabled.
4. Confirm that the "Properties" is displayed.