Hi,

Check in Device Manager that the touchscreen is shown as working properly and is not either disabled or if there is a problem with the drivers for the hardware.

Here is a link to an answer I have given previously which has helped people solve their HP Pavillion 11 x360 Touchscreen problems. Scroll down and check what to do as shown in the Most Helpful Answer box, including what is shown under the update, dated 30/09/2016.

How to reinstall touch screen driver? My touch screen stopped working..