If you have another Windows PC linked to your WiFi network and you forget your WiFi Password, you can retrieve it. You can use your password to join to your Wi-Fi network on another PC or device once you’ve found it.
select the Start button, Settings > Network & Internet > Status > Network and Sharing Center.
Select your current connected network.
Click Wireless Properties
Click on “Security” tab
Tick “Show characters”
Thats all you need to do to get the WiFi password that currently connected