diff --git a/MdePkg/Include/Guid/PropertiesTable.h b/MdePkg/Include/Guid/PropertiesTable.h
deleted file mode 100644
index 56dbc7f961..0000000000
--- a/MdePkg/Include/Guid/PropertiesTable.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/** @file
-  GUIDs used for UEFI Properties Table in the UEFI 2.5 specification.
-
-  Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
-  SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef __EFI_PROPERTIES_TABLE_H__
-#define __EFI_PROPERTIES_TABLE_H__
-
-#define EFI_PROPERTIES_TABLE_GUID {\
-  0x880aaca3, 0x4adc, 0x4a04, {0x90, 0x79, 0xb7, 0x47, 0x34, 0x8, 0x25, 0xe5} \
-}
-
-typedef struct {
-  UINT32    Version;
-  UINT32    Length;
-  UINT64    MemoryProtectionAttribute;
-} EFI_PROPERTIES_TABLE;
-
-#define EFI_PROPERTIES_TABLE_VERSION  0x00010000
-
-//
-// Memory attribute (Not defined bit is reserved)
-//
-#define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA        0x1
-
-extern EFI_GUID gEfiPropertiesTableGuid;
-
-#endif
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index ac1f5339af..6c37c2181c 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -578,9 +578,6 @@
   # GUIDs defined in UEFI2.5
   #
 
-  ## Include/Guid/PropertiesTable.h
-  gEfiPropertiesTableGuid        = { 0x880aaca3, 0x4adc, 0x4a04, {0x90, 0x79, 0xb7, 0x47, 0x34, 0x8, 0x25, 0xe5 }}
-
   ## Include/Guid/SystemResourceTable.h
   gEfiSystemResourceTableGuid    = { 0xb122a263, 0x3661, 0x4f68, {0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80 }}