Forget Wi-Fi on Phone/Tablet

  • Turn on Wi-Fi, if it's not already on.

  • Click on Wi-Fi 

  • Find the network you want to get rid of

  • Long press it, then choose 'Forget'

To forget a Wi-Fi network on TV

  • From the Home screen, tap Apps > Settings > Wi-Fi.

  • In the Wi-Fi settings screen, tap and hold the name of the network that you want to forget.

  • Tap Forget network in the Context menu that appears.

How to forget wireless networks on the Laptop

  • Click the Wi-Fi Network icon on the lower right corner of your screen.

  • Right click on the network name you want to clear on the list.

  • Select 'Forget'