diff --git a/Tools/build.xml b/Tools/build.xml
index caef839b50..9d4e6dbc39 100644
--- a/Tools/build.xml
+++ b/Tools/build.xml
@@ -119,6 +119,55 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     </if>
   </target>
 
+  <target name="reconfig">
+    <!-- backup all config files -->
+    <if>
+      <available file="Conf/target.txt"/>
+      <then>
+        <echo message="Backup Conf/target.txt to Conf/target.txt.bak" />
+        <copy file="Conf/target.txt" tofile="Conf/target.txt.bak" overwrite="true" />
+      </then>
+    </if>
+    <if>
+      <available file="Conf/tools_def.txt"/>
+      <then>
+        <echo message="Backup Conf/tools_def.txt to Conf/tools_def.txt.bak" />
+        <copy file="Conf/tools_def.txt" tofile="Conf/tools_def.txt.bak"  overwrite="true" />
+      </then>
+    </if>
+    <if>
+      <available file="Conf/FrameworkDatabase.db"/>
+      <then>
+        <echo message="Backup Conf/FrameworkDatabase.db to Conf/FrameworkDatabase.db.bak" />
+        <copy file="Conf/FrameworkDatabase.db" tofile="Conf/FrameworkDatabase.db.bak"  overwrite="true" />
+      </then>
+    </if>
+    
+    <if>
+      <available file="Conf/tools_def.template"/>
+      <then>
+        <echo message="Copy file from Conf/tools_def.template to Conf/tools_def.txt" />
+        <copy file="Conf/tools_def.template" tofile="Conf/tools_def.txt" overwrite="true" />
+      </then>
+    </if>
+
+    <if>
+      <available file="Conf/target.template"/>
+      <then>
+        <echo message="Copy file from Conf/target.template to Conf/target.txt" />
+        <copy file="Conf/target.template" tofile="Conf/target.txt" overwrite="true" />
+      </then>
+    </if>
+
+    <if>
+      <available file="Conf/FrameworkDatabase.template"/>
+      <then>
+        <echo message="Copy file from Conf/FrameworkDatabase.template to Conf/FrameworkDatabase.db" />
+        <copy file="Conf/FrameworkDatabase.template" tofile="Conf/FrameworkDatabase.db" overwrite="true" />
+      </then>
+    </if>
+  </target>
+
   <target name="clean">
     <subant target="clean" inheritall="false">
       <filelist dir="."
diff --git a/edksetup.bat b/edksetup.bat
index 333f061eab..7fabe4690e 100644
--- a/edksetup.bat
+++ b/edksetup.bat
@@ -15,7 +15,7 @@
 @REM set XMLBEANS_HOME=C:\xmlbeans
 @REM set CYGWIN_HOME=C:\cygwin
 
-@REM usage: edksetup.bat [Rebuild] [ForceRebuild]
+@REM usage: edksetup.bat [Rebuild] [ForceRebuild] [Reconfig]
 @REM if the argument, skip is present, only the paths and the
 @REM test and set of environment settings are performed. 
 
@@ -90,6 +90,8 @@ echo Resetting the PATH variable to include the FRAMEWORK_TOOLS_PATH for this WO
 @if "%1"=="/h" goto Usage
 @if "%1"=="/?" goto Usage
 @if "%1"=="/help" goto Usage
+@if "%1"=="ForceRebuild" goto ForceBuild
+@if "%1"=="Reconfig" goto Reconfig
 
 @IF NOT EXIST "Tools\Jars\Common.jar" goto NormalBuild
 @IF NOT EXIST "Tools\Jars\PcdTools.jar" goto NormalBuild
@@ -131,7 +133,6 @@ echo Resetting the PATH variable to include the FRAMEWORK_TOOLS_PATH for this WO
 @IF NOT EXIST "Tools\bin\dlg.exe" goto NormalBuild
 
 @if "%1"=="Rebuild" goto NormalBuild
-@if "%1"=="ForceRebuild" goto ForceBuild
 @if NOT "%1"=="" goto Usage
 
 goto skipbuild
@@ -250,9 +251,23 @@ set CLASSPATH=%CLASSPATH%;%WORKSPACE%\Tools\Bin\MigrationTools.jar
 echo CLASSPATH:     %CLASSPATH%
 goto end
 
+:Reconfig
+@REM
+@REM Reinstall all config files
+@REM
+call ant -f %WORKSPACE%\Tools\build.xml reconfig
+goto end
+
 :Usage
 echo.
-echo  Usage: %0 [Rebuild] [ForceRebuild]
+echo  Usage: %0 [Rebuild] [ForceRebuild] [Reconfig]
+echo         Rebuild:       Incremental build, only build those updated tools; 
+echo         ForceRebuild:  Rebuild all tools neither updated or not; 
+echo         Reconfig:      Reinstall target.txt, tools_def.txt, FrameworkDatabase.db. 
+echo.
+echo  Note that target.template, tools_def.template, FrameworkDatabase.template will be
+echo  only copied to target.txt, tools_def.txt, FrameworkDatabase.db respectively if they
+echo  are not existed. Using option [Reconfig] to do the force copy. 
 echo.
 
 :end