Using W10 1511 10586.494, much older than yours. Maybe MS fixed the tablet mode, like in New and Improved.
It might be a little detail, like Task Manager opening with an empty window since no Apps were running instead of listing all processes.
Anyway I found a solution: Deleting the two shortcuts and recreating them worked.
Thank you both for your help.
That's old, even for 1511, 10586.494 was the July 2016 build. You should be on 10586.873 by now.
Glad you got it to work, but I'd worry about you not getting the updates.
@mQ573, you seem to have stopped at July, in August you should have received the Anniversary Update to 1607. If you deliberately chose to stick on 1511 then there are better ways to do that than disabling windows updates. You can hide individual updates, including the Features Updates like 1607 and 1703. That way you can leave windows update turned on and continue getting vital security and bug-fix updates.
Hide or Show Windows Updates in Windows 10
I use it on my test machine (system two in my 'specs'). It has system images for all versions, back to the original 10240 release. Each earlier version has the features updates hidden.
Quote