After I upgraded my computer to Windows 10, my touchscreen stopped working in Chrome. I actually didn’t notice it for quite some time, which tells me that maybe I don’t need a touchscreen. Anyway, here’s a workaround that can fix the problem.
Type the following into the address bar in Chrome.
A huge list of settings will appear. Click on “ctrl” and “f” to do a page search for the word “touch”. That should take you to:
“Enable Touch Events”
Change the setting from “Automatic” to “Enable”.
Edit: Typing this into the address bar will get you to the right place quickly.