diff --git a/installer/create_package.bat b/installer/create_package.bat
index 63237e384..4b114e168 100644
--- a/installer/create_package.bat
+++ b/installer/create_package.bat
@@ -32,6 +32,11 @@ if "%RELEASE%" == "1" (
 rem ポータブル版をコピーして取っておく(署名に使用する)
 %CMAKE% -E rm -rf Output/portable/teraterm-%arch%
 %CMAKE% -E copy_directory Output/build/teraterm-%arch% Output/portable/teraterm-%arch%
+if ERRORLEVEL 1 (
+    echo ERROR copy_directory Output/build/teraterm-%arch%
+    endlocal
+    exit /b 1
+)
 
 
 rem (署名なし)インストーラ作成
@@ -45,21 +50,63 @@ set INNO_SETUP_ARCH="/DArch=x86"
 if "%arch%" == "x64" (set INNO_SETUP_ARCH=/DArch=%arch%)
 if "%arch%" == "arm64" (set INNO_SETUP_ARCH=/DArch=%arch%)
 %INNO_SETUP% %INNO_SETUP_APPVERSION% /OOutput %INNO_SETUP_OUTPUT% /DSrcDir=Output\build\teraterm-%arch% %INNO_SETUP_ARCH% teraterm.iss
+if ERRORLEVEL 1 (
+    echo ERROR %INNO_SETUP%
+    endlocal
+    exit /b 1
+)
 
 rem (署名なし)ポータブル版のzipを作成
 pushd Output
 %CMAKE% -E rm -rf %OUTPUT%
 %CMAKE% -E rm -rf %OUTPUT%_pdb
 %CMAKE% -E copy_directory build\teraterm-%arch% %OUTPUT%
+if ERRORLEVEL 1 (
+    echo ERROR copy_directory build\teraterm-%arch%
+    popd
+    endlocal
+    exit /b 1
+)
 %CMAKE% -E copy_directory build\teraterm-%arch%_pdb %OUTPUT%_pdb
+if ERRORLEVEL 1 (
+    echo ERROR copy_directory build\teraterm-%arch%_pdb
+    popd
+    endlocal
+    exit /b 1
+)
 %CMAKE% -E tar cf %OUTPUT%.zip --format=zip %OUTPUT%/
+if ERRORLEVEL 1 (
+    echo ERROR tar %OUTPUT%.zip
+    popd
+    endlocal
+    exit /b 1
+)
 %CMAKE% -E tar cf %OUTPUT%_pdb.zip --format=zip %OUTPUT%_pdb/
+if ERRORLEVEL 1 (
+    echo ERROR tar %OUTPUT%_pdb.zip
+    popd
+    endlocal
+    exit /b 1
+)
 popd
 
 rem ハッシュを作成
 pushd Output
 %CMAKE% -E sha256sum %OUTPUT%.exe %OUTPUT%.zip %OUTPUT%_pdb.zip > %OUTPUT%.sha256sum
+if ERRORLEVEL 1 (
+    echo ERROR sha256sum
+    popd
+    endlocal
+    exit /b 1
+)
 %CMAKE% -E sha512sum %OUTPUT%.exe %OUTPUT%.zip %OUTPUT%_pdb.zip > %OUTPUT%.sha512sum
+if ERRORLEVEL 1 (
+    echo ERROR sha512sum
+    popd
+    endlocal
+    exit /b 1
+)
 popd
 
 endlocal
+exit /b 0
diff --git a/installer/release.bat b/installer/release.bat
index cc5783740..7e5aa0a04 100644
--- a/installer/release.bat
+++ b/installer/release.bat
@@ -38,35 +38,50 @@ echo %no%
 
 if "%no%" == "1" (
     call :download_libs force
+    if errorlevel 1 exit /b 1
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm rebuild
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "2" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm rebuild
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "3" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "4" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_libs
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "5" (
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm rebuild
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "6" (
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "7" (
@@ -83,24 +98,34 @@ if "%no%" == "10" (
 
 if "%no%" == "11" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm_1 rebuild
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "12" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm_2 rebuild
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "13" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm_1
+    if errorlevel 1 exit /b 1
 )
 
 if "%no%" == "14" (
     call :download_libs
+    if errorlevel 1 exit /b 1
     call :build_libs
+    if errorlevel 1 exit /b 1
     call :build_teraterm_2
+    if errorlevel 1 exit /b 1
 )
 
 if not "%NOPAUSE%" == "1" pause
@@ -132,6 +157,10 @@ rem ####################
 setlocal
 cd /d %CUR%..\libs
 call buildall.bat
+if errorlevel 1 (
+    endlocal
+    exit /b 1
+)
 endlocal
 exit /b 0