I replaced the current driver above with the Beta Crimson Driver.
This jpg shows what is apparently installed:
Then I tried all three DX11 game versions I have on my hard drive as of today. ALL THREE immediately reported the same old error: snip... unable to start correctly (0x0000007b). ...
The second jpg is for Skuzzy in case it's helpful. The Crimson Driver porked my Desktop as severely as anything I've ever seen. Somehow AMD decided they should change the way scaling works with one monitor in landscape and a second one in portrait mode. Even my Task Bar vanished. After a couple of hours chasing things down, it's all fixed except reorganizing the icons on the desktop, until I reformat.