diff --git a/DirectXTex/DirectXTex_Desktop_2019.vcxproj b/DirectXTex/DirectXTex_Desktop_2019.vcxproj
index 7457e4a..618dd63 100644
--- a/DirectXTex/DirectXTex_Desktop_2019.vcxproj
+++ b/DirectXTex/DirectXTex_Desktop_2019.vcxproj
@@ -138,6 +138,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -170,6 +171,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
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@@ -202,6 +204,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -235,6 +238,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -269,6 +273,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -302,6 +307,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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       <GenerateDebugInformation>true</GenerateDebugInformation>
diff --git a/DirectXTex/DirectXTex_Desktop_2019_Win10.vcxproj b/DirectXTex/DirectXTex_Desktop_2019_Win10.vcxproj
index 95592d7..44f4626 100644
--- a/DirectXTex/DirectXTex_Desktop_2019_Win10.vcxproj
+++ b/DirectXTex/DirectXTex_Desktop_2019_Win10.vcxproj
@@ -192,6 +192,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <SubSystem>Windows</SubSystem>
@@ -224,6 +225,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
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@@ -256,6 +258,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
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@@ -288,6 +291,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -321,6 +325,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -354,6 +359,7 @@
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -387,6 +393,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -419,6 +426,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -451,6 +459,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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       <GenerateDebugInformation>true</GenerateDebugInformation>
diff --git a/DirectXTex/DirectXTex_GDK_2019.vcxproj b/DirectXTex/DirectXTex_GDK_2019.vcxproj
index be5ba26..25e29e6 100644
--- a/DirectXTex/DirectXTex_GDK_2019.vcxproj
+++ b/DirectXTex/DirectXTex_GDK_2019.vcxproj
@@ -247,6 +247,7 @@
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings>5204</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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@@ -272,6 +273,7 @@
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings>5204</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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@@ -297,6 +299,7 @@
       <OpenMPSupport>true</OpenMPSupport>
       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings>5204</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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@@ -322,6 +325,7 @@
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings>5204</DisableSpecificWarnings>
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@@ -347,6 +351,7 @@
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
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@@ -416,6 +423,7 @@
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings>5204</DisableSpecificWarnings>
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@@ -438,6 +446,7 @@
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       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings>5204</DisableSpecificWarnings>
+      <ExternalWarningLevel>Level4</ExternalWarningLevel>
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diff --git a/DirectXTex/DirectXTex_Windows10_2019.vcxproj b/DirectXTex/DirectXTex_Windows10_2019.vcxproj
index 5d8a152..c37ffe5 100644
--- a/DirectXTex/DirectXTex_Windows10_2019.vcxproj
+++ b/DirectXTex/DirectXTex_Windows10_2019.vcxproj
@@ -239,6 +239,7 @@
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       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
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@@ -262,6 +263,7 @@
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       <OpenMPSupport>true</OpenMPSupport>
       <DisableSpecificWarnings>26812</DisableSpecificWarnings>
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@@ -285,6 +287,7 @@
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@@ -309,6 +312,7 @@
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