Just adding another lament to this disaster.
Shortly after returning from a two months absence and updating my Win10 (Miix700) laptop, it became unusable... apps unresponsive and freezing, to the point where I stopped trying to diagnose the cause(s) and elected to do a "windows reset"
Despite the microsoft promise that all user files would be retained, everything except the desktop icons were gonewhen the reset was finished.
Fortunately, in my case, I had a full backup of all of my user files. I'm trying to look at the positive side of this "happening" in that it has forced me to make a clean start on as minimal a Win10 platform as possible... (no easy task there either)
During the cleanup after the reset, I found a folder named "windows.old..." that was completely empty.
Just a caution for anyone facing the same decision... don't do it without a full backup, including backing up configuration files for installed software. I have one big question remaining, but, will post that in a new thread.
Ya'll be careful now, hear... and give my regards to microsoft,
Beverly Howard