the files on your flash drive are most likely hidden try clicking on your flash drive click on the top left corner it says organize and go to folder and search options click on view go to hidden files and folders and click on show hidden files,folders and drives hope that was any help

The files on your flash drive are most likely hidden. Try clicking on the "Organize" button on the upper left corner of Windows Explorer and go to "Folder and search options". Click on the "View" tab and check the "show hidden files, folders and drives" radio button.