Windows will attempt to reinstall the driver. when you touch the touch screen with your finger, the cursor has no response or disappeared.
after you upgrade your dell laptop such as vostro 3459 to windows 10, the touchpad cannot work properly. Fix dell touchpad not working on windows 10 3 years 17 weeks ago. the wrong or corrupted touchpad driver may also cause touchpad not working. update touchpad driver to fix touchpad not working windows 10. click device settings > select your device touchpad > enable > apply > ok.
Press windows r keys at the same time to open run.