Samsung UN60ES7500FXZA - Manual (Page 491)

TV is not recognized, the files on the
device are corrupted, or a file in the
list is not played, connect the USB
device to a PC, format the device
and check the connection.
ΠIf a file you deleted from the PC is
still found when you run Smart Hub,
use the “Empty the Recycle Bin”
function on the PC to permanently
delete the file.
ΠIf the database of the saved file list