Last week when I went to shut down my Win10-64, it shut down after a win update (update & shut down). when I turned on the computer the next morning, and went to open LR, I clicked on the library module and all my folders were missing. I do have all my images on a separate drive, but do I have to import all those files once again? I'm not sure what happened to cause this. I also have the back-ups and catalogs on separate drive as well, so I know everything is recoverable.