diff --git a/Nt32Pkg/Nt32Pkg.dsc b/Nt32Pkg/Nt32Pkg.dsc
index 424f72fc7f..6656e11a5a 100644
--- a/Nt32Pkg/Nt32Pkg.dsc
+++ b/Nt32Pkg/Nt32Pkg.dsc
@@ -226,9 +226,9 @@
 
 !if $(SECURE_BOOT_ENABLE) == TRUE
   # override the default values from SecurityPkg to ensure images from all sources are verified in secure boot
-  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x05
+  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x04
 !endif
 
 ################################################################################
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index 8eb45b3a0a..41c104c6f6 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -303,9 +303,9 @@
 
 !if $(SECURE_BOOT_ENABLE) == TRUE
   # override the default values from SecurityPkg to ensure images from all sources are verified in secure boot
-  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x05
+  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x04
 !endif
 
   # IRQs 5, 9, 10, 11 are level-triggered
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index 6373ecfebe..2c7b457332 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -309,9 +309,9 @@
 [PcdsFixedAtBuild.X64]
 !if $(SECURE_BOOT_ENABLE) == TRUE
   # override the default values from SecurityPkg to ensure images from all sources are verified in secure boot
-  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x05
+  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x04
 !endif
 
   # IRQs 5, 9, 10, 11 are level-triggered
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index 2530a489df..9fc0183d34 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -308,9 +308,9 @@
 
 !if $(SECURE_BOOT_ENABLE) == TRUE
   # override the default values from SecurityPkg to ensure images from all sources are verified in secure boot
-  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x05
-  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x05
+  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x04
+  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x04
 !endif
 
   # IRQs 5, 9, 10, 11 are level-triggered
diff --git a/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c b/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
index 9e4bf8681b..2458ee2ae1 100644
--- a/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
+++ b/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
@@ -1086,6 +1086,14 @@ DxeImageVerificationHandler (
     return EFI_ACCESS_DENIED;
   }
 
+  //
+  // The policy QUERY_USER_ON_SECURITY_VIOLATION violates the UEFI spec and has been removed.
+  //
+  ASSERT (Policy != QUERY_USER_ON_SECURITY_VIOLATION);
+  if (Policy == QUERY_USER_ON_SECURITY_VIOLATION) {
+    CpuDeadLoop ();
+  }
+
   GetEfiGlobalVariable2 (EFI_SECURE_BOOT_MODE_NAME, (VOID**)&SecureBoot, NULL);
   //
   // Skip verification if SecureBoot variable doesn't exist.
diff --git a/SecurityPkg/SecurityPkg.dec b/SecurityPkg/SecurityPkg.dec
index 4c3129a8ae..610682717e 100644
--- a/SecurityPkg/SecurityPkg.dec
+++ b/SecurityPkg/SecurityPkg.dec
@@ -87,7 +87,8 @@
   #  DEFER_EXECUTE_ON_SECURITY_VIOLATION    0x00000003
   #  DENY_EXECUTE_ON_SECURITY_VIOLATION     0x00000004
   #  QUERY_USER_ON_SECURITY_VIOLATION       0x00000005 
-  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x00|UINT32|0x00000001
+  #  NOTE: Do NOT use QUERY_USER_ON_SECURITY_VIOLATION since it violates the UEFI specification and has been removed.
+  gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x04|UINT32|0x00000001
   
   ## Pcd for removable media.
   #  Removable media include CD-ROM, Floppy, USB and network.
@@ -98,7 +99,8 @@
   #  DEFER_EXECUTE_ON_SECURITY_VIOLATION    0x00000003
   #  DENY_EXECUTE_ON_SECURITY_VIOLATION     0x00000004
   #  QUERY_USER_ON_SECURITY_VIOLATION       0x00000005
-  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x05|UINT32|0x00000002
+  #  NOTE: Do NOT use QUERY_USER_ON_SECURITY_VIOLATION since it violates the UEFI specification and has been removed.
+  gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy|0x04|UINT32|0x00000002
   
   ## Pcd for fixed media.
   #  Fixed media include hard disk.
@@ -109,7 +111,8 @@
   #  DEFER_EXECUTE_ON_SECURITY_VIOLATION    0x00000003
   #  DENY_EXECUTE_ON_SECURITY_VIOLATION     0x00000004
   #  QUERY_USER_ON_SECURITY_VIOLATION       0x00000005  
-  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x05|UINT32|0x00000003
+  #  NOTE: Do NOT use QUERY_USER_ON_SECURITY_VIOLATION since it violates the UEFI specification and has been removed.
+  gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy|0x04|UINT32|0x00000003
   
   ## Defer Image Load policy settings.
   #  The policy is bitwise.