So the laptop touchpad loses efficacy.Īnd sometimes after upgrading to Windows 10, the touchpad is not recognized by Windows 10 and shows a yellow exclamation in device manager. And the two touchpad buttons also have no response. When you touch the touchpad with your finger, the cursor has no response or disappeared. After you upgrade your Dell laptop such as Vostro 3459, Inspito Windows 10, the touchpad cannot work properly.