Windows 10: Windows not showing folder contents

I recently bought a new PC with W10 installed and all seems to have gone smoothly with transferring files etc from my old PC to the new machine. I ran Duplicate Cleaner before the transfer and again afterwards as it was obvious there were some folders that had not been picked up as duplicates. Now that most duplicates have been deleted, or so I hope, I have noticed that File Explorer shows folder icons which appear empty and when clicked say This folder is empty. Before I delete any folders I check Properties and I was surprised to see all the empty folders had thousand of files and ran into several Gb's.
I can't get anything to open and am reluctant to delete them before I am certain.
Can anyone suggest what is happening?


:)

 

Files App not showing folder contents in all cases

I installed the Files app. The Photos folder contains files as expected and matches the folder/subfolder view I can see when my Nokia 930 ( windowsphone 8.1) is attached to my pc. But the Music folder is empty even though the Music app shows albums, songs,
etc. and the subfolders and files are shown on the pc.

I have tried reinstalling to no affect.

Any ideas welcome.

 

Files App not showing folder contents in all cases

Update. I tried reinstalling again and this time "songs" loaded did show up as folders and subfolders. Odd!

 

Type Folders in Settings....click on Hidden Files and Folders....under Files and Folders you have options.

 

The files may have all been cleverly changed to hidden and/or system attribute. As per above, in your folder options- make sure that these files are displayed/shown.

 

Thanks guys, I'll follow up your suggestions.