diff --git a/MdePkg/Include/Guid/EventLegacyBios.h b/MdePkg/Include/Guid/EventLegacyBios.h
index 60dede613f..d9ac83fce4 100644
--- a/MdePkg/Include/Guid/EventLegacyBios.h
+++ b/MdePkg/Include/Guid/EventLegacyBios.h
@@ -13,7 +13,7 @@
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
 
   @par Revision Reference:
-  GUIDs defined in DXE CIS 0.91b.
+  GUIDs defined in PI 1.0.
 
 **/
 
diff --git a/MdePkg/Include/Uefi/UefiMultiPhase.h b/MdePkg/Include/Uefi/UefiMultiPhase.h
index d427296406..6d54aa222b 100644
--- a/MdePkg/Include/Uefi/UefiMultiPhase.h
+++ b/MdePkg/Include/Uefi/UefiMultiPhase.h
@@ -153,10 +153,6 @@ typedef struct _WIN_CERTIFICATE_UEFI_GUID {
 } WIN_CERTIFICATE_UEFI_GUID;
 
 
-
-
-
-
 /**
    
   Certificate which encapsulates the RSASSA_PKCS1-v1_5 digital
diff --git a/MdePkg/Include/Uefi/UefiSpec.h b/MdePkg/Include/Uefi/UefiSpec.h
index 0c324888ed..5de9887183 100644
--- a/MdePkg/Include/Uefi/UefiSpec.h
+++ b/MdePkg/Include/Uefi/UefiSpec.h
@@ -894,6 +894,7 @@ typedef enum {
   EfiResetCold,
   EfiResetWarm,
   EfiResetShutdown,
+  EfiResetUpdate
 } EFI_RESET_TYPE;
 
 /**