If the screen has never responded to touch, but you think it should, please refer to the following methods to confirm whether your computer has a touchscreen function.
Enable and reinstall the touchscreen driver in Device Manager.Confirm the computer has a touchscreen function.Please go to the corresponding instruction based on the current Windows operating system on your computer: If your touchscreen doesn't have right-click function, please refer to How to set the right-click function for touchscreen. If you experience the touchscreen responding inaccurately, not sensitive, or not responding at all, please refer to the following troubleshooting in order. Troubleshooting - Touchscreen/Touch Panel problems