FAT32 File System Structures

With the addition of the FAT32 file system, several structures were updated to accommodate FAT32 information. Additionally, subordinate structures have been implemented to support the FAT32 file system main structures. These changes are effective for Windows OEM Service Release 2 and later.

BPB
BIGFATBOOTFSINFO
DPB
EA_DEVICEPARAMETERS
ExtGetDskFreSpcStruc
s_partition
SDPDFormatStruc

Note  Many data structures in this document are listed as reserved. This indicates that the user is not to assume or modify the values within these fields. They are used by the file system itself and are not available for any enhancements.