Update the touch screen driver in Device Manager (HP 15-abxxx....
Update the touch screen driver in Device Manager (HP 15-abxxx, 15-acxxx, 15-adxxx, 15-afxxx, 15-ajxxx and 15-fxx)
Reinstall the original touch screen device driver that came installed on your computer using the following steps:
In Windows, search for and open Device Manager.
Expand Mice and other pointing devices.
Right-click the USB Touchscreen Controller(C04D).
Select the option Browse my computer for driver software.
Select the option Let me pick from a list of device drivers on my computer.
Select USB Input Device, and click Next.
Follow the onscreen instructions to install the driver.
When driver installation is complete, confirm the touch screen is functioning properly.
If the touch screen still does not respond after reinstalling the driver, continue to the next step.