The original DOS/Win9x boot record (FAT16/FAT32) had a 32-bit Volume Serial Number at offset 0x43.
An Examination of the MSWIN4.1 OS Boot Record:
http://thestarman.pcministry.com/asm/mbr/MSWIN41.htmThe NTFS boot record has a 32-bit Volume Serial Number at offset 0x48.
An Examination of the NTFS Volume Boot Record Of Microsoft Win 2000 and Win XP:
http://thestarman.pcministry.com/asm/mbr/NTFSBR.htmQuote:
NOTE: When you use the DIR command and others inside of a CMD/DOS-box under Windows 2000/XP, it will show a Volume Serial Number composed of only the last four bytes of this Long Long Word [B4A4E199A4E15DFC]!
Example:
C:\>dir
Volume in drive C is Win2000
Volume Serial Number is A4E1-5DFC
Obviously, we must look into this further to find out how all these bytes are being used by the Operating System!
It is interesting to note how the (3rd and 4th) and (6th and 7th) bytes repeat here!
Do you have a Serial Number where these two sets of bytes are not the same?
You can use a disc editor such as DMDE (freeware) to view and edit the boot sector.
http://dmde.com/