The version is 1.72.19. KRyLack Volume Serial Number Editor can modify your disk drives Volume Serial Number (not hard disks physical serial which you can find at back of your hard disk), the format of Volume Serial Number is: XXXX-XXXX (X maybe 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F).