diff --git a/ide/vs2017/mimalloc-override-test.vcxproj b/ide/vs2017/mimalloc-override-test.vcxproj
index b8e2648b..faaa00e3 100644
--- a/ide/vs2017/mimalloc-override-test.vcxproj
+++ b/ide/vs2017/mimalloc-override-test.vcxproj
@@ -112,7 +112,7 @@
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
-      <ExceptionHandling>false</ExceptionHandling>
+      <ExceptionHandling>Sync</ExceptionHandling>
       <CompileAs>Default</CompileAs>
       <SupportJustMyCode>false</SupportJustMyCode>
     </ClCompile>
diff --git a/ide/vs2017/mimalloc.vcxproj b/ide/vs2017/mimalloc.vcxproj
index 55f37392..e08deec4 100644
--- a/ide/vs2017/mimalloc.vcxproj
+++ b/ide/vs2017/mimalloc.vcxproj
@@ -111,7 +111,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
@@ -165,7 +165,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <ConformanceMode>true</ConformanceMode>
diff --git a/ide/vs2019/mimalloc-override-test.vcxproj b/ide/vs2019/mimalloc-override-test.vcxproj
index 79adedb0..a2497a19 100644
--- a/ide/vs2019/mimalloc-override-test.vcxproj
+++ b/ide/vs2019/mimalloc-override-test.vcxproj
@@ -90,7 +90,7 @@
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
-      <ExceptionHandling>false</ExceptionHandling>
+      <ExceptionHandling>Sync</ExceptionHandling>
       <CompileAs>Default</CompileAs>
       <SupportJustMyCode>false</SupportJustMyCode>
     </ClCompile>
@@ -112,7 +112,7 @@
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
-      <ExceptionHandling>false</ExceptionHandling>
+      <ExceptionHandling>Sync</ExceptionHandling>
       <CompileAs>Default</CompileAs>
       <SupportJustMyCode>false</SupportJustMyCode>
     </ClCompile>