Forget a WiFi network profile (Windows)

Have you connected to wi-fi networks in the past that you'll never use again? Here's how to remove them from Windows OS.

Fix Wi-Fi connection issues in Windows (Microsoft Support)

You can use the instructions at Fix Wi-Fi connection issues in Windows for various troubleshooting techniques with your Windows system, including how to forget or remove wireless networks.

Forget or remove wireless networks

1. Open Control Panel and select Network & Internet. 
2. From the menu select Wi-Fi in the left panel, then Manage Wi-Fi settings.
3. In the following window under Manage known networks, select the network you wish to remove and select Forget. This will delete the wireless network's profile and connection details.
4. Restart your computer.
5. Connect to the correct wireless network. Visit Connecting to wireless.