diff --git a/DirectXTK_Desktop_2017_Win10.vcxproj b/DirectXTK_Desktop_2017_Win10.vcxproj
index 059aec86..4a7ed6aa 100644
--- a/DirectXTK_Desktop_2017_Win10.vcxproj
+++ b/DirectXTK_Desktop_2017_Win10.vcxproj
@@ -524,7 +524,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
-      <ConformanceMode>false</ConformanceMode>
+      <ConformanceMode>true</ConformanceMode>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
       <SupportJustMyCode>false</SupportJustMyCode>
     </ClCompile>
@@ -545,7 +545,7 @@
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
-      <ConformanceMode>false</ConformanceMode>
+      <ConformanceMode>true</ConformanceMode>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
       <SupportJustMyCode>false</SupportJustMyCode>
     </ClCompile>
@@ -565,7 +565,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
-      <ConformanceMode>false</ConformanceMode>
+      <ConformanceMode>true</ConformanceMode>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
@@ -587,7 +587,7 @@
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
-      <ConformanceMode>false</ConformanceMode>
+      <ConformanceMode>true</ConformanceMode>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>