Or, if they weren't, Microsoft soon revised the mission statement toward that end.
In the end, I went for that most sophisticated of solutions: I muttered a few brief, angry prayers to the Gods of Data, crashed the computer, and restarted. Voilà - my 'Training Materials' folder was back from the wilderness, whistling casually to itself and pretending it had never gone away at all.
Why? Why does this happen?? Why me, god???