After I did a refresh of Windows 10 from USB I too forum my touch pad was not working as I liked. I was able to set it up with the functions I wanted by doing the following;
SETUP> devices> Mouse & touchpad> Additional mouse options> here I found the ever familiar Mouse Properties and the tab with my touch pad settings. In the devices my touchpad is highlighted then click the settings button.
But after returning here to find the path I see my last settings have been reset again and my one finger scrolling was turned off again?
YMMV