diff --git a/Shared_Includes b/Shared_Includes
index e1233b2..c020ce3 160000
--- a/Shared_Includes
+++ b/Shared_Includes
@@ -1 +1 @@
-Subproject commit e1233b24a06f9be0c80349b47ab34cfceacc2486
+Subproject commit c020ce3b569f171558e159af931aca3a0fdb78bf
diff --git a/format/format.asm b/format/format.asm
index 6a95918..06346d0 100755
--- a/format/format.asm
+++ b/format/format.asm
@@ -858,13 +858,13 @@ CALCULATED_FAT_PARAMETERS:
 .DRIVE_TYPE:			WORD	0	;			; [x] +-
 .SectorsPerFAT16:		WORD	0	; FAT32 constant	;
 .HEADS				WORD	0				;
-.HIDDEN				WORD	0	; от начала MBR, extMBR	;
+.HIDDEN				DWORD	0	; от начала MBR, extMBR	; [x]
 .BPB_BIG_TOTAL_SECTORS_L	WORD	0				; [x] +-
 .BPB_BIG_TOTAL_SECTORS_H	WORD	0				; [x] +-
 ;	FAT 12, FAT 16
 .BPB_PHISICAL_DRIVE_NUMBER	BYTE	#80				; [x]
 .reserved_1			BYTE	0				;
-.FAT.EXT_BOOT_REC_SIGNATURE	BYTE	#29				;
+.FAT.EXT_BOOT_REC_SIGNATURE	BYTE	#29	; constant				;
 .FAT.SERIAL_NUMBER		DWORD	0				;
 .FAT.LABEL			TEXT	11				;
 .ID_FAT				TEXT	8				;
@@ -898,7 +898,20 @@ reserved_sectors = ( ((.HIDDEN + min_last_sector) & #0F)>0 ) * #10) - .HIDDEN
 FORMAT_FAT32:	LD	(.Save_SP),SP
 		; Определение параметров носителя и выбор FAT
 .STEP1:		; эта должна быть общей для заполнения геометрии диска
-		LD	A,VARIABLES.CurrentDrive
+
+		LD	A,(VARIABLES.CurrentDrive)
+		LD	BC,Dss.DRV.GenIOCTL.GetMoreParams
+		RST	ToDSS.DRV
+		JR	NC,.set_hidden
+		;
+		CP	BIOS.Error.InvalidSubFunction
+		JR	Z,.GetParams	; если нет такой подфункции в драйвере, то смещение = 0
+		SCF
+		JR	.ERROR
+		;
+.set_hidden:	LD	(CALCULATED_FAT_PARAMETERS.HIDDEN),DE
+		LD	(CALCULATED_FAT_PARAMETERS.HIDDEN + 2),HL
+.GetParams:	LD	A,(VARIABLES.CurrentDrive)
 		LD	BC,Dss.DRV.GenIOCTL.GetParams
 		RST	ToDSS.DRV
 		JR	C,.ERROR
@@ -962,7 +975,8 @@ FORMAT_FAT32:	LD	(.Save_SP),SP
 		;
 		LD	A,B
 		LD	(CALCULATED_FAT_PARAMETERS.DRIVE_TYPE),A
-
+		;
+