diff --git a/builds/win32/build_all.bat b/builds/win32/build_all.bat
index abf51d0389..3b589de1b3 100644
--- a/builds/win32/build_all.bat
+++ b/builds/win32/build_all.bat
@@ -4,6 +4,8 @@
 ::===========
 :MAIN
 @echo.
+@del ..\..\src\include\gen\autoconfig.h
+@copy ..\..\src\include\gen\autoconfig_msvc.h ..\..\src\include\gen\autoconfig.h
 @echo Preprocessing files required to do a boot-build...
 @call build_boot.bat BOOT
 @call preprocess.bat BOOT
diff --git a/builds/win32/preprocess.bat b/builds/win32/preprocess.bat
index 7f53238d06..7bae758804 100644
--- a/builds/win32/preprocess.bat
+++ b/builds/win32/preprocess.bat
@@ -20,8 +20,6 @@
 @if "%BOOTBUILD%"=="1" (call :BOOT_PROCESS) else (call :MASTER_PROCESS)
 @set BOOTBUILD=
 @set GPRE=
-@del ..\..\src\include\gen\autoconfig.h
-@copy ..\..\src\include\gen\autoconfig_msvc.h ..\..\src\include\gen\autoconfig.h
 @goto :END
 
 ::===========