Click on the Internet icon on the bottom right of your taskbar:
Click on the carrot icon next to your Wi-Fi
Select "More Wi-Fi settings"
Select "Manage known networks"
You will be presented with all your known networks with an option to forget. After forgetting you can attempt to reconnect to that network.
Click on the Wi-Fi icon on the top right of your task bar then select "Wi-Fi Settings..."
Click on the three dots next to the network you would like to forget.
You will be presented with an option to "Forget This Network..." After selecting "Forget This Network..." you can attempt to reconnect to that network.
Open your settings app and scroll down, selecting the Wi-Fi symbol.
Once you are in the Wi-Fi settings select the blue "i" icon.
You will be presented with an option to "Forget This Network." After selecting "Forget This Network" you can attempt to reconnect to that network.
Open your settings app and select "Network & internet."
Select the gear icon to the left of the network you would like to forget the network.
Select "Forget." After selecting "Forget" you can attempt to reconnect to that network.