In any USB drives or in Flash drives sometimes these drive is empty but when you check it in properties it may show you some spaced is occupied but and also you might wonder why this still there after formatting these drives for few times. You may thought some of the files are hidden in that drives, Here we list the possible options to retrieve those data or to clean those memory.
There is possibility of availability of some of the hidden files in those drives, follow these steps to to show the hidden files in flash or in USB drives.
* Plugin the USB or Flash Drives
* Go to run (Windows key + R)
* type CMD
* In the following window enter the following command
ATTRIB(SPACE)-R(SPACE)-A(SPACE)-S
For example ATTRIB -R -A -S -H /S /D F:*.*
* Hit enter
* Close the command prompt window
* Go the flash drive or to USB drive, you will find hidden files if any
Another method to remove those data and clear the drives is by formatting those drives. Format those USB or Flash Drives as usual, but make sure you unmarked the quick formatting option. It may take more time to complete than usual and i am sure your drives is cleared and nothing is present., Hope this information might be useful for you, Happy Computing !