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diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/VariableWrite.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/VariableWrite.h
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+/** @file
+  Variable Write Architectural Protocol as defined in PI Specification VOLUME 2 DXE
+
+  This provides the services required to set nonvolatile environment variables. 
+  This protocol must be produced by a runtime DXE driver and may be consumed only 
+  by the DXE Foundation.
+
+  The DXE driver that produces this protocol must be a runtime driver. This driver 
+  may update the SetVariable() field of the UEFI Runtime Services Table.
+  
+  After the UEFI Runtime Services Table has been initialized, the driver must 
+  install the EFI_VARIABLE_WRITE_ARCH_PROTOCOL_GUID on a new handle with a NULL 
+  interface pointer. The installation of this protocol informs the DXE Foundation 
+  that the write services for nonvolatile environment variables are now available 
+  and that the DXE Foundation must update the 32-bit CRC of the UEFI Runtime Services 
+  Table. The full complement of environment variable services are not available 
+  until both this protocol and EFI_VARIABLE_ARCH_PROTOCOL are installed. DXE drivers 
+  that require read-only access or read/write access to volatile environment variables
+  must have the EFI_VARIABLE_WRITE_ARCH_PROTOCOL in their dependency expressions.
+  DXE drivers that require write access to nonvolatile environment variables must 
+  have this architectural protocol in their dependency expressions.  
+  
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<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        
+  http://opensource.org/licenses/bsd-license.php                                            
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+**/
+
+#ifndef __ARCH_PROTOCOL_VARIABLE_WRITE_ARCH_H__
+#define __ARCH_PROTOCOL_VARIABLE_WRITE_ARCH_H__
+
+///
+/// Global ID for the Variable Write Architectural Protocol
+///
+#define EFI_VARIABLE_WRITE_ARCH_PROTOCOL_GUID \
+  { 0x6441f818, 0x6362, 0x4e44, {0xb5, 0x70, 0x7d, 0xba, 0x31, 0xdd, 0x24, 0x53 } }
+
+extern EFI_GUID gEfiVariableWriteArchProtocolGuid;
+
+#endif