Forget a Wi-Fi Network on Windows 10
Removing and re-adding a network can be an easy fix for many connection problems. If you’re unsure of how to remove a network on a Windows computer then follow this quick guide.
Instructions
Search for and open “Wi-Fi settings” in your Windows search bar.
Click Manage known networks and select the Wi-Fi network you want to remove.
Click Forget. The next time you attempt to connect to the network will be as if were your first time.