How to disable IPv6 protocol under Win7 system

            1. First, click the windows icon on the desktop or click the Start menu in the lower left corner of the screen, and then enter the control panel interface in the shortcut menu that appears.
2. After entering the network and Internet-network and sharing center in the control panel interface, you can see the change adapter settings in the left menu in the new window.
3. Click Change Adapter Settings, then find the network connection you are using in the interface that appears and right click and select Properties.
4. After you can find the IPv6 protocol option in the list, directly remove the item, and then click OK to save the settings.