Please follow the steps below 1.Download windows installer from wireguard official website: https://www.wireguard.com/install/ 2.Generate config using Wireguard Tool: https://www.wireguardconfig.com/ 3.Add Tunnel And Active, named it as "NAME_YOU_WANT" 4.Go to Windows Network Setting, setup Share internet, right click your internet connection network interface, Check the checkbox for "Allow other network users to connect through this computer's Internet connection, Select interface "NAME_YOU_WANT" from droplist. that's all,but every time you reboot windows, you'll lose share internet function, so you have to do follow step: *Go to Windows Network Setting, setup Share internet, right click your internet connection network interface, UNCHECK the checkbox for "Allow other network users to connect through this computer's Internet connection and press OK now,do step 4 again.you'll get shering internet connection work correct.