Platform SDK: Win32 API

Partition Types

The following are all the valid partition types and their corresponding values for use in the Part_FileSystem member of the s_partition structure.

Partition Types

Value Description
PART_UNKNOWN (00h) Unknown
PART_DOS2_FAT (01h) 12-bit FAT
PART_DOS3_FAT (04h) 16-bit FAT. Partitions smaller than 32MB.
PART_EXTENDED (05h) Extended MS-DOS Partition
PART_DOS4_FAT (06h) 16-bit FAT. Partitions larger than or equal to 32MB.
PART_DOS32 (0Bh) 32-bit FAT. Partitions up to 2047GB.
PART_DOS32X (0Ch) Same as PART_DOS32 (0Bh), but uses Logical Block Address Int 13h extensions.
PART_DOSX13 (0Eh) Same as PART_DOS4_FAT (06h), but uses Logical Block Address Int 13h extensions.
PART_DOSX13X (0Fh) Same as PART_EXTENDED (05h), but uses Logical Block Address Int 13h extensions.