I was missing all but a handful of recent photographs. I like to have everything on my desktop, and everything linked from my desktop was gone--all my documents, grading sheets, novels, PDF articles, MP3s, videos, e-books, and photographs from way back. About 179 G of stuff, all told.
Panicking--because this is a relatively new computer and in the process of transferring files to it I found the music library I thought was wiped out in a hard drive crash a couple of years ago, and I can't stand to lose it again--I tried to think of a word that would be the name of a file, and nothing else, and came up with "Dalbello." I searched it, and it found the MP3, and played it for me in VLC. On the song there was a right-click option, "Show Containing Folder," that let me see where it was. From there I was able to follow the pathway back up and find... another desktop folder, where everything was exactly where I had left it. I moved the files and folders to the desktop it was showing me now, the empty one, so everything is pretty much restored.
(I meant to copy it, but it outright moved it. And now I worry a little that despite my best efforts to ascertain that I'm signed in as me, I've just moved everything to a temporary desktop, and if I restart or log out I'll get my old desktop back, but everything I moved will be gone for good. I would love to back it all up before I try, but I don't have 179 G of storage lying around. I'll work it out somehow; I'm not losing this stuff again.)
So yeah. Desktops within desktops within desktops. Every so often, I'll click the wrong folder, and get the empty version of it, and I have to go back through the file tree to find the full one. I want to pare the branches, so to speak, but I don't know which is the "real" one, and I don't want to delete what I think are extras and go back and find out that my files have vanished into the ether.
If your files are deleted, I am truly truly sorry, and I hope that Microsoft flat-out helps you rebuild and takes steps that ensure this won't happen again. But I hope they're just missing like mine were. And I still hope that Microsoft takes steps to ensure this won't happen again.