Disk Serial Number Changer helps you to modify your disk drive's Volume Serial Number (not hard disk's physical serial which you can find at back of your hard disk), the format of Volume Serial Number is: XXXX-XXXX (X – 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F). Volume Serial Number is a serial number assigned by the Operating System to a disk volume. This disk serial number is automatically generated and assigned when you format a disk partition and there is no documented way to change it without reformatting the disk volume. Disk Serial Number Changer allows you to modify your disk drive's volume serial number. Supports NTFS, FAT, FAT32 and exFAT file systems. Supports Removable media. Easily backup your current volume serial number before making any changes.