diff --git a/HeaderMake/HeaderMake.vcxproj b/HeaderMake/HeaderMake.vcxproj
index 075be72d7b..b2e84bd5f8 100644
--- a/HeaderMake/HeaderMake.vcxproj
+++ b/HeaderMake/HeaderMake.vcxproj
@@ -54,13 +54,13 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_CONSOLE;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <AdditionalOptions>/source-charset:shift_jis %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>  
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -78,6 +78,7 @@
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalOptions>/source-charset:shift_jis %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>  
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
diff --git a/MakefileMake/MakefileMake.vcxproj b/MakefileMake/MakefileMake.vcxproj
index b85b37a05b..1c46528825 100644
--- a/MakefileMake/MakefileMake.vcxproj
+++ b/MakefileMake/MakefileMake.vcxproj
@@ -54,13 +54,13 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_CONSOLE;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <AdditionalOptions>/source-charset:shift_jis %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>  
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -78,6 +78,7 @@
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalOptions>/source-charset:shift_jis %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>  
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
diff --git a/sakura_lang_en_US/sakura_lang_en_US.vcxproj b/sakura_lang_en_US/sakura_lang_en_US.vcxproj
index dd22eb26f7..547736d1ce 100644
--- a/sakura_lang_en_US/sakura_lang_en_US.vcxproj
+++ b/sakura_lang_en_US/sakura_lang_en_US.vcxproj
@@ -106,7 +106,6 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_USRDLL;SAKURA_LANG_EN_US_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
       <PrecompiledHeaderOutputFile>$(OutDir)$(TargetName).pch</PrecompiledHeaderOutputFile>
@@ -116,6 +115,7 @@
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>  
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -157,6 +157,7 @@
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>  
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;_WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>