diff --git a/paddle/scripts/paddle_build.bat b/paddle/scripts/paddle_build.bat
index cfb59a04f8147f5c09aa08a01bcd304bf8ccc120..f9ec40c1830655d2ccfe1b71270e94341e875fc5 100644
--- a/paddle/scripts/paddle_build.bat
+++ b/paddle/scripts/paddle_build.bat
@@ -20,13 +20,12 @@ rem       Paddle CI Task On Windows Platform
 rem =================================================
 
 rem -------clean up environment-----------
+wmic process where name="op_function_generator.exe" call terminate  2>NUL
 set work_dir=%cd%
-if exist build rmdir build /s/q
 mkdir build
 cd /d build
 tree .
 dir paddle\fluid\pybind\Release
-taskkill /f /im op_function_generator.exe  2>NUL
 
 rem ------initialize the virtual environment------
 if not defined PYTHON_ROOT set PYTHON_ROOT=C:\Python37
@@ -216,7 +215,7 @@ pip install -U %PADDLE_WHL_FILE_WIN% --user
 if %ERRORLEVEL% NEQ 0 (
     call paddle_winci\Scripts\deactivate.bat 2>NUL
     echo pip install whl package failed!
-    exit /b 3
+    exit /b 1
 )
 
 python %work_dir%\paddle\scripts\installation_validate.py
@@ -225,7 +224,7 @@ goto:eof
 :test_whl_pacakage_error
 call paddle_winci\Scripts\deactivate.bat 2>NUL
 echo Test import paddle failed, will exit!
-exit /b 3
+exit /b 1
 
 rem ---------------------------------------------------------------------------------------------
 :unit_test
@@ -248,6 +247,9 @@ goto:eof
 
 :unit_test_error
 call paddle_winci\Scripts\deactivate.bat 2>NUL
+for /F %%# in ('wmic os get localdatetime^|findstr 20') do set end=%%#
+set end=%end:~4,10%
+call :timestamp "%start%" "%end%" "TestCases Total"
 echo Running unit tests failed, will exit!
 exit /b 8
 
@@ -268,7 +270,7 @@ goto:eof
 :test_inference_error
 call paddle_winci\Scripts\deactivate.bat 2>NUL
 echo Testing fluid library for inference failed!
-exit /b 5
+exit /b 1
 
 rem ---------------------------------------------------------------------------------------------
 :check_change_of_unittest
@@ -399,7 +401,7 @@ taskkill /f /im git-remote-https.exe 2>NUL
 taskkill /f /im vctip.exe 2>NUL
 taskkill /f /im cvtres.exe 2>NUL
 taskkill /f /im rc.exe 2>NUL
-taskkill /f /im op_function_generator.exe  2>NUL
+wmic process where name="op_function_generator.exe" call terminate 2>NUL
 taskkill /f /im python.exe  2>NUL
 call paddle_winci\Scripts\deactivate.bat 2>NUL
 taskkill /f /im python.exe  2>NUL