diff --git a/DirectXTK_Desktop_2010.vcxproj b/DirectXTK_Desktop_2010.vcxproj
index d5319080c..b49701885 100644
--- a/DirectXTK_Desktop_2010.vcxproj
+++ b/DirectXTK_Desktop_2010.vcxproj
@@ -229,7 +229,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_WIN32_WINNT=0x0600;_WIN7_PLATFORM_UPDATE;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -243,7 +243,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_WIN32_WINNT=0x0600;_WIN7_PLATFORM_UPDATE;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -256,7 +256,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -275,7 +275,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
diff --git a/DirectXTK_Desktop_2012.vcxproj b/DirectXTK_Desktop_2012.vcxproj
index 20a56b39f..a36cbc6d1 100644
--- a/DirectXTK_Desktop_2012.vcxproj
+++ b/DirectXTK_Desktop_2012.vcxproj
@@ -232,7 +232,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_WIN32_WINNT=0x0600;_WIN7_PLATFORM_UPDATE;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -246,7 +246,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_WIN32_WINNT=0x0600;_WIN7_PLATFORM_UPDATE;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -259,7 +259,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -278,7 +278,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
diff --git a/DirectXTK_Windows8.vcxproj b/DirectXTK_Windows8.vcxproj
index 2cc316851..973e34b04 100644
--- a/DirectXTK_Windows8.vcxproj
+++ b/DirectXTK_Windows8.vcxproj
@@ -272,7 +272,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_UNICODE;UNICODE;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -289,7 +289,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_UNICODE;UNICODE;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -306,7 +306,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_UNICODE;UNICODE;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
@@ -322,7 +322,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -344,7 +344,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -365,7 +365,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
diff --git a/DirectXTK_WindowsPhone8.vcxproj b/DirectXTK_WindowsPhone8.vcxproj
index fc54387b7..44d9b1582 100644
--- a/DirectXTK_WindowsPhone8.vcxproj
+++ b/DirectXTK_WindowsPhone8.vcxproj
@@ -227,7 +227,7 @@
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
       <AdditionalIncludeDirectories>$(ProjectDir)Inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
diff --git a/Src/GeometricPrimitive.cpp b/Src/GeometricPrimitive.cpp
index 696230e81..408706f89 100644
--- a/Src/GeometricPrimitive.cpp
+++ b/Src/GeometricPrimitive.cpp
@@ -515,12 +515,12 @@ std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateGeoSphere(_In_ ID3
             XMFLOAT3 v01; // vertex on the midpoint of v0 and v1
             XMFLOAT3 v12; // ditto v1 and v2
             XMFLOAT3 v20; // ditto v2 and v0
-            uint32_t iv01; // index of v01
-            uint32_t iv12; // index of v12
-            uint32_t iv20; // index of v20
+            uint16_t iv01; // index of v01
+            uint16_t iv12; // index of v12
+            uint16_t iv20; // index of v20
 
             // Function that, when given the index of two vertices, creates a new vertex at the midpoint of those vertices.
-            auto divideEdge = [&](uint32_t i0, uint32_t i1, XMFLOAT3& outVertex, uint32_t& outIndex)
+            auto divideEdge = [&](uint16_t i0, uint16_t i1, XMFLOAT3& outVertex, uint16_t& outIndex)
             {
                 const UndirectedEdge edge = makeUndirectedEdge(i0, i1);
 
@@ -545,7 +545,7 @@ std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateGeoSphere(_In_ ID3
                         )
                     );
 
-                    outIndex = static_cast<uint32_t>( vertexPositions.size() );
+                    outIndex = static_cast<uint16_t>( vertexPositions.size() );
                     CheckIndexOverflow(outIndex);
                     vertexPositions.push_back(outVertex);
 
@@ -567,7 +567,7 @@ std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateGeoSphere(_In_ ID3
             //     /b\c/d\
             // v2 o---o---o v1
             //       v12
-            const uint32_t indicesToAdd[] =
+            const uint16_t indicesToAdd[] =
             {
                  iv0, iv01, iv20, // a
                 iv20, iv12,  iv2, // b
diff --git a/Src/PlatformHelpers.h b/Src/PlatformHelpers.h
index dc55e24d6..bcf334fa4 100644
--- a/Src/PlatformHelpers.h
+++ b/Src/PlatformHelpers.h
@@ -13,6 +13,8 @@
 
 #pragma once
 
+#pragma warning(disable : 4324)
+
 #include <exception>
 
 #if _WIN32_WINNT < 0x0602 /*_WIN32_WINNT_WIN8*/
@@ -83,6 +85,9 @@ namespace DirectX
     {
         #if defined(_DEBUG) || defined(PROFILE)
             resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, name);
+        #else
+            UNREFERENCED_PARAMETER(resource);
+            UNREFERENCED_PARAMETER(name);
         #endif
     }