Good luck retrieving your folders. I have a similar experience going on and Comcast says mine are not recoverable. I spent a lot of time with reps attempting to retrieve the folders (right click trash folder, then "recover deleted files". My problem was that I had NO deleted files to retrieve. I hope your experience is better than mine.
I do not have any folders on my screen. The entire left side panel is gone as of this morning.
I cannot find any setting to change this.
See if this helps you-----------------