Hi
Over the years I've tried to save all my documents. This means that they have been copied from computer to computer and this includes external storage.

I believe all of the folders are present, most of which are identified by date. However, the entire folders are completely empty. I cannot see a pattern as to which folders. This seems to involve mostly older folders, but not all of the older folders are empty. More recent ones are also empty. Otherwise, I cannot identify any specific documents, only that large numbers of folders are empty.

I doubt it is possible to recover anything but I would like to prevent this from happening in the future.

Any advice or comments will be greatly appreciated.