Recover Hidden Spaces in PenDrive (USB)

WIN 7, 8:

Go to START button and type CMD and then RIGHT CLICK and select RUN AS ADMINISTRATOR.

After That Type below mentioned commands:

C:\Windows\system32> diskpart

DISKPART> list disk

Disk ###  Status         Size     Free     Dyn  Gpt
--------  -------------  -------  -------  ---  ---
  Disk 0    Online          298 GB      0 B
  Disk 1    Online         7509 MB  6619 MB (USB)

DISKPART> select disk 1

Disk 1 is now the selected disk.

DISKPART> clean

DiskPart succeeded in cleaning the disk.

DISKPART> create partition primary

DiskPart succeeded in creating the specified partition.

DISKPART> exit