Switching from WP X8 keyboard to Classic Mode 5.1 - Not working

I'm trying to switch from WP X8 keyboard to Classic Mode 5.1.  I have Windows 10 Pro.  I've gone into Settings, Customize, and set to 5.1, and WorkPlace Manager and set to 5.1.  It isn't working.  Anyone else have this problem?  Solution?  Thank you