I just updated with this update 1909 today and found that it fixed my issue with touchscreen no working. I noticed yesterday that my touchscreen wasn't working, so i was searching around for topics to resolve my issue. I reset computer and this did not work. I found that under the device manager Human Interface Devices, search and help topics said to look for HID-compliance touch screen. It was not showing in the device manager Human Interface Devices. So I looked like it mentions for updates and found there was an update there 1909, however I missed seeing it in my updates or I must of choose to pause the update for whatever reason. Now to the point.
After I did allow this update to run, my touchscreen works finally again. So if you find your laptop, desktop or other touchscreens to not be working, make sure you allow this update as it is the fix to your problem. Do not go to extremes and search your brain off like I did and nothing worked. Before running extreme measures run updates and keep checking often.
THIS UPDATE WILL SOLVE YOUR PROBLEM WITH TOUCHSCREEN NOT WORKING, 1909 UPDATE. IT SURELY FIXED MY ISSUE.