diff --git a/DuetPkg/CreateBootDisk.bat b/DuetPkg/CreateBootDisk.bat
index 2272a11dca..e4e1369cd4 100644
--- a/DuetPkg/CreateBootDisk.bat
+++ b/DuetPkg/CreateBootDisk.bat
@@ -6,17 +6,23 @@
 @set BUILD_DIR=%WORKSPACE%\Build\DuetPkg\DEBUG_MYTOOLS
 @set BOOTSECTOR_BIN_DIR=%WORKSPACE%\DuetPkg\BootSector\bin
 @set DISK_LABEL=DUET
-@echo on
+@set PROCESSOR=""
 
+@echo on
 
 @if "%1"=="" goto Help
 @if "%2"=="" goto Help
 @if "%3"=="" goto Help
+@if "%4"=="" goto NoArch
 @set EFI_BOOT_DISK=%2
+@if "%4"=="IA32" set PROCESSOR=IA32
+@if "%4"=="X64" set PROCESSOR=X64
+@if %PROCESSOR%=="" goto WrongArch
 @if "%1"=="floppy" goto CreateFloppy
 @if "%1"=="file" goto CreateFile
 @if "%1"=="usb" goto CreateUsb
 @if "%1"=="ide" goto CreateIde
+
 goto Help
 
 :CreateFloppy
@@ -35,7 +41,8 @@ goto Help
 @echo Done.
 copy %BUILD_DIR%\FV\EfiLdr %EFI_BOOT_DISK%
 mkdir %EFI_BOOT_DISK%\efi\boot
-copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\ia32\Shell.efi %EFI_BOOT_DISK%\efi\boot\bootia32.efi /y
+@if "%PROCESSOR%"=="IA32" goto CreateBootFileForIA32
+@if "%PROCESSOR%"=="X64" goto CreateBootFileForX64
 @goto end
 
 :CreateFile
@@ -56,7 +63,7 @@ copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\ia32\Shell.efi %EFI_BOOT_DISK%\efi\
 @if "%3"=="FAT12" goto WrongFATType
 
 :CreateUsb_FAT16
-@if "%4"=="step2" goto CreateUsb_FAT16_step2
+@if "%5"=="step2" goto CreateUsb_FAT16_step2
 @echo Format %EFI_BOOT_DISK% ...
 @echo.> FormatCommandInput.txt
 @format /FS:FAT /v:%DISK_LABEL% /q %EFI_BOOT_DISK% < FormatCommandInput.txt > NUL
@@ -73,11 +80,12 @@ copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\ia32\Shell.efi %EFI_BOOT_DISK%\efi\
 :CreateUsb_FAT16_step2
 @copy %BUILD_DIR%\FV\EfiLdr16 %EFI_BOOT_DISK%
 @mkdir %EFI_BOOT_DISK%\efi\boot
-copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\Ia32\Shell.efi %EFI_BOOT_DISK%\efi\boot\bootia32.efi /y
+@if "%PROCESSOR%"=="IA32" goto CreateBootFileForIA32
+@if "%PROCESSOR%"=="X64" goto CreateBootFileForX64
 @goto end
 
 :CreateUsb_FAT32
-@if "%4"=="step2" goto CreateUsb_FAT32_step2
+@if "%5"=="step2" goto CreateUsb_FAT32_step2
 @echo Format %EFI_BOOT_DISK% ...
 @echo.> FormatCommandInput.txt
 @format /FS:FAT32 /v:%DISK_LABEL% /q %EFI_BOOT_DISK% < FormatCommandInput.txt > NUL
@@ -95,17 +103,34 @@ copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\Ia32\Shell.efi %EFI_BOOT_DISK%\efi\
 :CreateUsb_FAT32_step2
 @copy %BUILD_DIR%\FV\EfiLdr20 %EFI_BOOT_DISK%
 @mkdir %EFI_BOOT_DISK%\efi\boot
-@copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\ia32\Shell.efi %EFI_BOOT_DISK%\efi\boot\bootia32.efi /y
+@if "%PROCESSOR%"=="IA32" goto CreateBootFileForIA32
+@if "%PROCESSOR%"=="X64" goto CreateBootFileForX64
 @goto end
 
 :CreateIde
 @goto end
 
+:CreateBootFileForIA32
+copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\IA32\Shell.efi %EFI_BOOT_DISK%\efi\boot\bootia32.efi /y
+@goto end
+
+:CreateBootFileForX64
+copy %WORKSPACE%\EdkShellBinPkg\MinimumShell\X64\Shell.efi %EFI_BOOT_DISK%\efi\boot\bootx64.efi /y
+@goto end
+
 :WrongFATType
 @echo Wrong FAT type %3 for %1
 @goto end
 
+:NoArch
+@echo Error! Please specific the architecture.
+@goto Help
+
+:WrongArch
+@echo Error! Wrong architecture.
+@goto Help
+
 :Help
-@echo "Usage: CreateBootDisk [usb|floppy|ide] DiskNumber [FAT12|FAT16|FAT32]"
+@echo "Usage: CreateBootDisk [usb|floppy|ide] DiskNumber [FAT12|FAT16|FAT32] [IA32|X64]"
 :end
 @echo on
\ No newline at end of file
diff --git a/DuetPkg/CreateBootDisk.sh b/DuetPkg/CreateBootDisk.sh
index fb54a31b0d..bfe1abd83e 100755
--- a/DuetPkg/CreateBootDisk.sh
+++ b/DuetPkg/CreateBootDisk.sh
@@ -14,8 +14,8 @@ if [ \
      "$*" = "--help" \
    ]
 then
-	echo "Usage: CreateBootDisk [usb|floppy|ide] MediaPath DevicePath [FAT12|FAT16|FAT32]"
-	echo "e.g. : CreateBootDisk floppy /media/floppy0 /dev/fd0 FAT12 "
+	echo "Usage: CreateBootDisk [usb|floppy|ide] MediaPath DevicePath [FAT12|FAT16|FAT32] [IA32|X64]"
+	echo "e.g. : CreateBootDisk floppy /media/floppy0 /dev/fd0 FAT12 IA32"
 	PROCESS_MARK=FALSE
 fi
 
@@ -44,9 +44,17 @@ then
 	
 				mkdir -p $EFI_BOOT_MEDIA/efi
 				mkdir -p $EFI_BOOT_MEDIA/efi/boot
-
-				cp $WORKSPACE/EdkShellBinPkg/MinimumShell/Ia32/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootia32.efi 
-	
+				if [ "$5" = IA32 ]
+				then
+					cp $WORKSPACE/EdkShellBinPkg/MinimumShell/Ia32/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootia32.efi 
+				else
+					if [ "$5" = X64 ]
+					then
+						cp $WORKSPACE/EdkShellBinPkg/MinimumShell/X64/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootx64.efi 
+					else
+						echo Wrong Arch!
+					fi
+				fi
 				echo Done.
 			else
 				echo "Wrong FAT type $4 for floppy!"
@@ -73,11 +81,21 @@ then
 
 			if [ "$4" = FAT16 ]
 			then
-				if [ "$5" = step2 ]
+				if [ "$6" = step2 ]
 				then
 					cp $BUILD_DIR/FV/Efildr16 $EFI_BOOT_MEDIA
 					mkdir $EFI_BOOT_MEDIA/efi/boot
-					cp $WORKSPACE/EdkShellBinPkg/MinimumShell/ia32/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootia32.efi
+					if [ "$5" = IA32 ]
+					then
+						cp $WORKSPACE/EdkShellBinPkg/MinimumShell/Ia32/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootia32.efi 
+					else
+						if [ "$5" = X64 ]
+						then
+							cp $WORKSPACE/EdkShellBinPkg/MinimumShell/X64/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootx64.efi 
+						else
+							echo Wrong Arch!
+						fi
+					fi
 					echo "step2 Done!"
 				else
 					echo Format $EFI_BOOT_DEVICE ...
@@ -93,11 +111,21 @@ then
 				fi
 			elif [ "$4" = FAT32 ]
 			then 
-				if [ "$5" = step2 ]
+				if [ "$6" = step2 ]
 				then
 					cp $BUILD_DIR/FV/Efildr20 $EFI_BOOT_MEDIA
 					mkdir $EFI_BOOT_MEDIA/efi/boot
-					cp $WORKSPACE/EdkShellBinPkg/MinimumShell/ia32/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootia32.efi
+					if [ "$5" = IA32 ]
+					then
+						cp $WORKSPACE/EdkShellBinPkg/MinimumShell/Ia32/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootia32.efi 
+					else
+						if [ "$5" = X64 ]
+						then
+							cp $WORKSPACE/EdkShellBinPkg/MinimumShell/X64/Shell.efi $EFI_BOOT_MEDIA/efi/boot/bootx64.efi 
+						else
+							echo Wrong Arch!
+						fi
+					fi
 					echo "step2 Done!"
 				else
 					echo Format $EFI_BOOT_DEVICE ...
diff --git a/DuetPkg/DxeIpl/HobGeneration.h b/DuetPkg/DxeIpl/HobGeneration.h
index 021b3ed501..9123089b73 100644
--- a/DuetPkg/DxeIpl/HobGeneration.h
+++ b/DuetPkg/DxeIpl/HobGeneration.h
@@ -26,7 +26,7 @@ Revision History:
 #define EFI_MEMORY_BELOW_1MB_START     0x86000
 #define EFI_MEMORY_BELOW_1MB_END       0x9F800
 #define EFI_MEMORY_STACK_PAGE_NUM      0x20
-#define CONSUMED_MEMORY                0x2000000
+#define CONSUMED_MEMORY                0x100000 * 80
 
 #define NV_STORAGE_START               0x15000
 #define NV_STORAGE_STATE               0x19000
diff --git a/DuetPkg/EfiLdr/EfiLoader.c b/DuetPkg/EfiLdr/EfiLoader.c
index c69a97f01f..c036e3f72c 100644
--- a/DuetPkg/EfiLdr/EfiLoader.c
+++ b/DuetPkg/EfiLdr/EfiLoader.c
@@ -56,7 +56,7 @@ EfiLoader (
   
   PrintHeader ('A');
   
-  AsciiSPrint (PrintBuffer, 256, "Enter DUET Loader ...\n", BiosMemoryMapBaseAddress);
+  AsciiSPrint (PrintBuffer, 256, "Enter DUET Loader...\n");
   PrintString (PrintBuffer);
 
   AsciiSPrint (PrintBuffer, 256, "BiosMemoryMapBaseAddress = 0x%x\n", BiosMemoryMapBaseAddress);
diff --git a/DuetPkg/ReadMe.txt b/DuetPkg/ReadMe.txt
index 173851b5a1..caaa4fbbf1 100644
--- a/DuetPkg/ReadMe.txt
+++ b/DuetPkg/ReadMe.txt
@@ -36,17 +36,21 @@ Create bootable disk
 3.1 Create floppy boot disk
   1). enter <Workspace>\DuetPkg directory.
   2). Insert a floppy disk to drive
-  3). run "CreateBootDisk.bat floppy a: FAT12" if floppy drive is a: disk.
-  
+  3). run "CreateBootDisk.bat floppy a: FAT12 IA32" if floppy drive is a: disk and Arch to boot is IA32.
+      or
+      run "CreateBootDisk.bat floppy a: FAT12 X64" if floppy drive is a: disk and Arch to boot is X64.
 3.2 Create usb boot disk
   1). enter <Workspace>\DuetPkg directory.
   2). Plugin usb disk
-  3). run "CreateBootDisk.bat usb e: FAT16" if usb drive is e: and FAT format is FAT16 or
-          "CreateBootDisk.bat usb e: FAT32" if usb drive is e: and FAT format is FAT32
+  3). run "CreateBootDisk.bat usb e: FAT16 IA32" if usb drive is e: and FAT format is FAT16 and Arch to boot is IA32.
+      or "CreateBootDisk.bat usb e: FAT16 X64" if usb drive is e: and FAT format is FAT16 and Arch to boot is X64.
+      or "CreateBootDisk.bat usb e: FAT32 IA32" if usb drive is e: and FAT format is FAT32 and Arch to boot is IA32.
+      or "CreateBootDisk.bat usb e: FAT32 X64" if usb drive is e: and FAT format is FAT32 and Arch to boot is X64.
   4). UnPlug usb disk and plugin it again.
-  5). run "CreateBootDisk.bat usb e: FAT16 step2" if usb drive is e: and FAT format is FAT16 or 
-          "CreateBootDisk.bat usb e: FAT32 step2" if usb drive is e: and FAT format is FAT32.
-          
+  5). run "CreateBootDisk.bat usb e: FAT16 IA32 step2" if usb drive is e: and FAT format is FAT16 and Arch to boot is IA32.
+      or "CreateBootDisk.bat usb e: FAT16 X64 step2" if usb drive is e: and FAT format is FAT16 and Arch to boot is X64.
+      or "CreateBootDisk.bat usb e: FAT32 IA32 step2" if usb drive is e: and FAT format is FAT32 and Arch to boot is IA32.
+      or "CreateBootDisk.bat usb e: FAT32 X64 step2" if usb drive is e: and FAT format is FAT32 and Arch to boot is X64.
           
 B. Build DUET image on Linux Platform
 ======================================        
@@ -98,4 +102,4 @@ B. Build DUET image on Linux Platform
 	  1). enter /R9_tree/DuetPkg directory.
 	  2). Insert a floppy disk to drive
 	  3). run "CreateBootDisk.sh" to build floppy drive
-		  such as "./CreateBootDisk.sh floppy /media/floppy0 /dev/fd0 FAT12"
\ No newline at end of file
+		  such as "./CreateBootDisk.sh floppy /media/floppy0 /dev/fd0 FAT12 IA32"
\ No newline at end of file