Hi ,
"Automatically show the touch keyboard in windowed apps when there’s no keyboard attached to your device."
Do you mean this?
http://www.thewindowsclub.com/make-windows-10-show-touch-keyboard-automatically
NOTE: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites.
Are you using Surface?
There is no such setting on my Windows 10 computer. According to my research, this setting is related to Surface. Please see "Solution 3: Change your typing settings" .
https://www.microsoft.com/surface/en-us/support/touch-mouse-and-search/on-screen-keyboard-doesnt-appear?os=windows-10&=undefined
Best regards
Please
mark the reply as an answer if you find it is helpful.
If you have feedback for TechNet Support, contact
tnmff@microsoft.com