If you no longer want Windows 8.1 to connect to a wireless network that you’ve previously saved the password for you could try right clicking on it and choosing “forget” but sometimes this doesn’t work.
Another way is to open up a command prompt as an administrator (press WINDOWS-X and choose “Command prompt (Admin)”) and perform the following:
- Type: netsh wlan show profiles
- Locate the name of the wireless profile you’d like to forget.
- type:
netsh wlan delete profile name=”[PROFILE NAME]”
Replacing [PROFILE NAME] with the name of the Wi-Fi network you want to erase (from the list at step 2)
You’re done! You can still make Windows 8.1 forget a Wi-fi network via the regular interface, but only if you’re within range and fail to connect at least once. It’s an Unfortunate and cumbersome process, but at least the command line tool still works well.