diff --git a/Nt32Pkg/Nt32Pkg.dsc b/Nt32Pkg/Nt32Pkg.dsc
index d5cd180a02..ee2f9a9c83 100644
--- a/Nt32Pkg/Nt32Pkg.dsc
+++ b/Nt32Pkg/Nt32Pkg.dsc
@@ -6,6 +6,7 @@
 #
 # Copyright (c) 2015, Hewlett-Packard Development Company, L.P.<BR>
 # Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+# (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 #
 #    This program and the accompanying materials
 #    are licensed and made available under the terms and conditions of the BSD License
@@ -276,6 +277,9 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64|0
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase64|0
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64|0
 
 [PcdsDynamicDefault.Ia32]
   gEfiNt32PkgTokenSpaceGuid.PcdWinNtFileSystem|L".!..\..\..\..\EdkShellBinPkg\Bin\Ia32\Apps"|VOID*|106
diff --git a/Nt32Pkg/Sec/SecMain.c b/Nt32Pkg/Sec/SecMain.c
index e6eb3cf45e..e9f72dfba1 100644
--- a/Nt32Pkg/Sec/SecMain.c
+++ b/Nt32Pkg/Sec/SecMain.c
@@ -1,6 +1,7 @@
 /**@file
 
 Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -809,7 +810,7 @@ Returns:
   // Align buffer on section boundry
   //
   ImageContext.ImageAddress += ImageContext.SectionAlignment - 1;
-  ImageContext.ImageAddress &= ~(ImageContext.SectionAlignment - 1);
+  ImageContext.ImageAddress &= ~((EFI_PHYSICAL_ADDRESS)ImageContext.SectionAlignment - 1);
 
   Status = PeCoffLoaderLoadImage (&ImageContext);
   if (EFI_ERROR (Status)) {
diff --git a/Nt32Pkg/WinNtAutoScanPei/WinNtAutoScan.c b/Nt32Pkg/WinNtAutoScanPei/WinNtAutoScan.c
index ab5fd0f3f1..8b68fefcaa 100644
--- a/Nt32Pkg/WinNtAutoScanPei/WinNtAutoScan.c
+++ b/Nt32Pkg/WinNtAutoScanPei/WinNtAutoScan.c
@@ -1,6 +1,7 @@
 /**@file
 
 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 This program and the accompanying materials                          
 are licensed and made available under the terms and conditions of the BSD License         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -176,9 +177,9 @@ Returns:
   } while (!EFI_ERROR (Status));
 
   //
-  // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
+  // Build the CPU hob with 52-bit addressing and 16-bits of IO space.
   //
-  BuildCpuHob (36, 16);
+  BuildCpuHob (52, 16);
 
   //
   // Build GUIDed Hob that contains the Memory Type Information array
diff --git a/Nt32Pkg/WinNtFlashMapPei/FlashMap.c b/Nt32Pkg/WinNtFlashMapPei/FlashMap.c
index 36457bdf25..0a1b325666 100644
--- a/Nt32Pkg/WinNtFlashMapPei/FlashMap.c
+++ b/Nt32Pkg/WinNtFlashMapPei/FlashMap.c
@@ -1,6 +1,7 @@
 /**@file
 
 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 This program and the accompanying materials                          
 are licensed and made available under the terms and conditions of the BSD License         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -85,9 +86,15 @@ Returns:
   //
   // Relocate the base of FV region 
   // 
-  PcdSet32 (PcdFlashNvStorageVariableBase, PcdGet32 (PcdWinNtFlashNvStorageVariableBase) + (UINT32) FdBase);
-  PcdSet32 (PcdFlashNvStorageFtwWorkingBase, PcdGet32 (PcdWinNtFlashNvStorageFtwWorkingBase) + (UINT32) FdBase);
-  PcdSet32 (PcdFlashNvStorageFtwSpareBase, PcdGet32 (PcdWinNtFlashNvStorageFtwSpareBase) + (UINT32) FdBase);
+  if (FdBase >= BASE_4GB) {
+    PcdSet64 (PcdFlashNvStorageVariableBase64, PcdGet32 (PcdWinNtFlashNvStorageVariableBase) + (UINT64) FdBase);
+    PcdSet64 (PcdFlashNvStorageFtwWorkingBase64, PcdGet32 (PcdWinNtFlashNvStorageFtwWorkingBase) + (UINT64) FdBase);
+    PcdSet64 (PcdFlashNvStorageFtwSpareBase64, PcdGet32 (PcdWinNtFlashNvStorageFtwSpareBase) + (UINT64) FdBase);
+  } else {
+    PcdSet32 (PcdFlashNvStorageVariableBase, PcdGet32 (PcdWinNtFlashNvStorageVariableBase) + (UINT32) FdBase);
+    PcdSet32 (PcdFlashNvStorageFtwWorkingBase, PcdGet32 (PcdWinNtFlashNvStorageFtwWorkingBase) + (UINT32) FdBase);
+    PcdSet32 (PcdFlashNvStorageFtwSpareBase, PcdGet32 (PcdWinNtFlashNvStorageFtwSpareBase) + (UINT32) FdBase);
+  }
 
   return EFI_SUCCESS;
 }
diff --git a/Nt32Pkg/WinNtFlashMapPei/WinNtFlashMapPei.inf b/Nt32Pkg/WinNtFlashMapPei/WinNtFlashMapPei.inf
index 5334fb9198..f5a14af519 100644
--- a/Nt32Pkg/WinNtFlashMapPei/WinNtFlashMapPei.inf
+++ b/Nt32Pkg/WinNtFlashMapPei/WinNtFlashMapPei.inf
@@ -3,6 +3,7 @@
 #
 # This module installs FlashMap PPI which is used to get flash layout information.
 # Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+# (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
@@ -49,10 +50,13 @@
 [Pcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase64
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64
 
   gEfiNt32PkgTokenSpaceGuid.PcdWinNtFlashNvStorageFtwWorkingBase
   gEfiNt32PkgTokenSpaceGuid.PcdWinNtFlashNvStorageFtwSpareBase