If you know the date, then it is possible to calculate the Calculating the date is a little more difficult as you need theĮxact seconds and 100ths of a second and vice versa. If you know the year when the disk was formatted, it is then possible to calculate the time. This is then added to the hexadecimal value of the year. The high-order word is calculated by taking the hours & minutes value and converting them to hex. The number of seconds and 100ths of seconds are also converted to hexadecimal and added to month & day value. The low-order word is calculated by taking the month and day value and converting them to hex number.
I'll provide you with some details.Ī disk serial number is of type DWORD. It's a eight-digit hex value calculated by the creation time and date.
Every FAT volume has a disk serial number allocated by system when the disk is formatted.
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