This one is annoying me. And either I triggered something or this is new, because it used not happen before.
Working on my machine with Windows 8.1, and I need to attend to a call of nature. So I lock my screen:
Come back, unlock the screen.... and I'm looking at the Tiles, not my Desktop.
Reason being that when I lock the screen and I hit [Windows Key]+L.... well, I hit [Windows Key] first, and it toggles my screen from Desktop to Tiles
I am pretty sure that it used not do that until recently. So I reckon either Microsoft have once again "improved" their software to something no sane person would ever ask for.... OR I hit some kind of key combination by accident that changed the Windows Key behaviour. And now I have no idea how to change it back. I did, of course, employ my Google Fu, but it is failing me today.