Hi Tom,
I've been using Reader DC for about 2 years now with Win 10 versions 1511 up through 1709 and I have not had any problems myself. I do check for updates regularly from within Reader DC at Help >Check for updates (the most current version at this time is 2018.009.20050).
That being said, upon reading your Q I remembered reading about a seemingly identical issue about a year or 2 ago with the same symptoms you describe. After doing some checking around I see that it has popped-up again as of late for some people on some systems.
It's been reported by a number of people that the below procedure worked for them so it would be worth a try.
Apparently during an update of either Windows or Reader DC a change is being made to the compatibility mode setting.
Right-click on the desktop Acrobat Reader DC icon (even though this is actually just a shortcut to the .exe file it can initiate the run in compatibility mode option) and select Properties, click on the compatibility tab and if the "Run this program in compatibility
mode for:" checkbox is checked clear it (uncheck it) then click on Apply then Ok.
I that doesn't work out:
There are 2 potential other places to check the same as well, the first one to check can be reached by right-clicking again on the desktop icon (again, this is actually just a shortcut to) and selecting "Open file location", this will open a file explorer
window to the actual .exe file that opens the program, check it in the same way as above.
The other can be reached by right-clicking on the start menu Acrobat Reader DC icon >more >Open file location. This will bring you to the program shortcut that lives in the Windows start menu folder, check this in the same way as above.
Let us know how it goes,
-Richard