diff --git a/install.bat b/install.bat
index cdb8287..e7638e0 100644
--- a/install.bat
+++ b/install.bat
@@ -7,6 +7,7 @@ set "APP_NAME=Copydev Imposing Tool"
 set "INSTALL_DIR=%LOCALAPPDATA%\CopydevImposingTool"
 set "PYTHON_DIR=%INSTALL_DIR%\python"
 set "APP_DIR=%INSTALL_DIR%\app"
+set "EXE_PATH=%INSTALL_DIR%\CopydevImposingTool.exe"
 set "SHORTCUT_NAME=Copydev Imposing Tool"
 set "GITEA_REPO=https://git.copydev.fr/jules/copydev-imposing-tool.git"
 set "PYTHON_VERSION=3.12.8"
@@ -25,19 +26,200 @@ echo ============================================================
 echo.
 echo    1. Installer
 echo    2. Mettre a jour
-echo    3. Desinstaller
-echo    4. Quitter
+echo    3. Reparer (reinstaller Python + dependances)
+echo    4. Desinstaller
+echo    5. Quitter
 echo.
-set /p "CHOIX=Votre choix [1-4] : "
+set "CHOIX="
+set /p "CHOIX=Votre choix [1-5] : "
 
 if "%CHOIX%"=="1" goto INSTALL
 if "%CHOIX%"=="2" goto UPDATE
-if "%CHOIX%"=="3" goto UNINSTALL
-if "%CHOIX%"=="4" goto END
+if "%CHOIX%"=="3" goto REPAIR
+if "%CHOIX%"=="4" goto UNINSTALL
+if "%CHOIX%"=="5" goto END
 echo Choix invalide.
 timeout /t 2 >nul
 goto MENU
 
+:: ============================================================
+:: FONCTIONS COMMUNES
+:: ============================================================
+
+:: ---- Detecter ou installer Git ----
+:SETUP_GIT
+where git >nul 2>&1
+if %ERRORLEVEL%==0 (
+    echo       [OK] Git systeme detecte.
+    set "GIT_CMD=git"
+    goto :EOF
+)
+if exist "%INSTALL_DIR%\git\cmd\git.exe" (
+    echo       [OK] Git portable detecte.
+    set "GIT_CMD=%INSTALL_DIR%\git\cmd\git.exe"
+    goto :EOF
+)
+echo       Telechargement de Git portable...
+if not exist "%INSTALL_DIR%\git" mkdir "%INSTALL_DIR%\git"
+if not exist "%INSTALL_DIR%\temp" mkdir "%INSTALL_DIR%\temp"
+echo       URL: %GIT_URL%
+powershell -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%GIT_URL%' -OutFile '%INSTALL_DIR%\temp\git.zip' -UseBasicParsing }"
+if not exist "%INSTALL_DIR%\temp\git.zip" (
+    echo       [ERREUR] Echec du telechargement de Git.
+    set "GIT_CMD="
+    goto :EOF
+)
+echo       Extraction...
+powershell -Command "Expand-Archive -Force '%INSTALL_DIR%\temp\git.zip' '%INSTALL_DIR%\git'"
+del "%INSTALL_DIR%\temp\git.zip" 2>nul
+if exist "%INSTALL_DIR%\git\cmd\git.exe" (
+    echo       [OK] Git portable installe.
+    set "GIT_CMD=%INSTALL_DIR%\git\cmd\git.exe"
+) else (
+    echo       [ERREUR] Git n'a pas ete extrait correctement.
+    set "GIT_CMD="
+)
+goto :EOF
+
+:: ---- Detecter ou installer Python ----
+:SETUP_PYTHON
+:: Python systeme ?
+where python >nul 2>&1
+if %ERRORLEVEL%==0 (
+    for /f "tokens=*" %%i in ('python --version 2^>^&1') do echo       [OK] %%i detecte.
+    set "PYTHON_CMD=python"
+    goto :EOF
+)
+:: py launcher ?
+where py >nul 2>&1
+if %ERRORLEVEL%==0 (
+    for /f "tokens=*" %%i in ('py --version 2^>^&1') do echo       [OK] %%i detecte.
+    set "PYTHON_CMD=py"
+    goto :EOF
+)
+:: Python embarque deja installe ?
+if exist "%PYTHON_DIR%\python.exe" (
+    echo       [OK] Python embarque detecte.
+    set "PYTHON_CMD=%PYTHON_DIR%\python.exe"
+    goto :EOF
+)
+:: Installer Python embarque
+echo       Telechargement de Python %PYTHON_VERSION%...
+if not exist "%PYTHON_DIR%" mkdir "%PYTHON_DIR%"
+if not exist "%INSTALL_DIR%\temp" mkdir "%INSTALL_DIR%\temp"
+echo       URL: %PYTHON_URL%
+powershell -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%PYTHON_URL%' -OutFile '%INSTALL_DIR%\temp\python.zip' -UseBasicParsing }"
+if not exist "%INSTALL_DIR%\temp\python.zip" (
+    echo       [ERREUR] Echec du telechargement de Python.
+    set "PYTHON_CMD="
+    goto :EOF
+)
+for %%A in ("%INSTALL_DIR%\temp\python.zip") do echo       Fichier telecharge: %%~zA octets
+echo       Extraction...
+powershell -Command "Expand-Archive -Force '%INSTALL_DIR%\temp\python.zip' '%PYTHON_DIR%'"
+del "%INSTALL_DIR%\temp\python.zip" 2>nul
+if not exist "%PYTHON_DIR%\python.exe" (
+    echo       [ERREUR] python.exe introuvable apres extraction.
+    echo       Contenu du dossier:
+    dir "%PYTHON_DIR%" 2>nul
+    set "PYTHON_CMD="
+    goto :EOF
+)
+:: Activer pip (decommenter import site dans le fichier ._pth)
+for %%f in ("%PYTHON_DIR%\python*._pth") do (
+    echo       Activation pip dans %%~nxf...
+    powershell -Command "(Get-Content '%%f') -replace '#import site','import site' | Set-Content '%%f'"
+)
+echo       [OK] Python %PYTHON_VERSION% installe.
+set "PYTHON_CMD=%PYTHON_DIR%\python.exe"
+goto :EOF
+
+:: ---- Installer pip ----
+:SETUP_PIP
+"%PYTHON_CMD%" -m pip --version >nul 2>&1
+if %ERRORLEVEL%==0 (
+    echo       [OK] pip deja installe.
+    goto :EOF
+)
+echo       Telechargement de pip...
+if not exist "%INSTALL_DIR%\temp" mkdir "%INSTALL_DIR%\temp"
+powershell -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%GET_PIP_URL%' -OutFile '%INSTALL_DIR%\temp\get-pip.py' -UseBasicParsing }"
+if not exist "%INSTALL_DIR%\temp\get-pip.py" (
+    echo       [ERREUR] Echec du telechargement de get-pip.py
+    goto :EOF
+)
+echo       Installation de pip...
+"%PYTHON_CMD%" "%INSTALL_DIR%\temp\get-pip.py" --no-warn-script-location
+del "%INSTALL_DIR%\temp\get-pip.py" 2>nul
+"%PYTHON_CMD%" -m pip --version >nul 2>&1
+if %ERRORLEVEL%==0 (
+    echo       [OK] pip installe.
+) else (
+    echo       [ERREUR] pip n'a pas pu etre installe.
+)
+goto :EOF
+
+:: ---- Installer dependances ----
+:SETUP_DEPS
+echo       Installation des dependances...
+"%PYTHON_CMD%" -m pip install --upgrade --no-warn-script-location PyQt6 pypdf reportlab pypdfium2 2>&1
+echo.
+:: Verification
+echo       Verification des dependances...
+"%PYTHON_CMD%" -c "import PyQt6; print('       [OK] PyQt6')" 2>nul || echo       [ERREUR] PyQt6 manquant
+"%PYTHON_CMD%" -c "import pypdf; print('       [OK] pypdf')" 2>nul || echo       [ERREUR] pypdf manquant
+"%PYTHON_CMD%" -c "import reportlab; print('       [OK] reportlab')" 2>nul || echo       [ERREUR] reportlab manquant
+"%PYTHON_CMD%" -c "import pypdfium2; print('       [OK] pypdfium2')" 2>nul || echo       [ERREUR] pypdfium2 manquant
+goto :EOF
+
+:: ---- Creer lanceur et raccourcis ----
+:SETUP_SHORTCUTS
+:: Lanceur .bat (avec console pour voir les erreurs)
+(
+    echo @echo off
+    echo cd /d "%APP_DIR%"
+    echo "%PYTHON_CMD%" main.py
+    echo if errorlevel 1 pause
+) > "%INSTALL_DIR%\lancer.bat"
+
+:: Lanceur .vbs (sans console)
+(
+    echo Set WshShell = CreateObject^("WScript.Shell"^)
+    echo WshShell.CurrentDirectory = "%APP_DIR%"
+    echo WshShell.Run """%PYTHON_CMD%"" ""%APP_DIR%\main.py""", 0, False
+) > "%INSTALL_DIR%\lancer.vbs"
+
+:: Determiner la cible du raccourci
+if exist "%EXE_PATH%" (
+    set "LAUNCH_TARGET=%EXE_PATH%"
+) else (
+    set "LAUNCH_TARGET=%INSTALL_DIR%\lancer.vbs"
+)
+
+:: Raccourci Bureau
+powershell -Command "& { $WshShell = New-Object -ComObject WScript.Shell; $Shortcut = $WshShell.CreateShortcut([Environment]::GetFolderPath('Desktop') + '\%SHORTCUT_NAME%.lnk'); $Shortcut.TargetPath = '!LAUNCH_TARGET!'; $Shortcut.WorkingDirectory = '%APP_DIR%'; $Shortcut.Description = '%APP_NAME%'; $Shortcut.Save() }" 2>nul
+echo       [OK] Raccourci Bureau cree.
+
+:: Raccourci Menu Demarrer
+set "START_MENU=%APPDATA%\Microsoft\Windows\Start Menu\Programs"
+powershell -Command "& { $WshShell = New-Object -ComObject WScript.Shell; $Shortcut = $WshShell.CreateShortcut('%START_MENU%\%SHORTCUT_NAME%.lnk'); $Shortcut.TargetPath = '!LAUNCH_TARGET!'; $Shortcut.WorkingDirectory = '%APP_DIR%'; $Shortcut.Description = '%APP_NAME%'; $Shortcut.Save() }" 2>nul
+echo       [OK] Raccourci Menu Demarrer cree.
+goto :EOF
+
+:: ---- Test de lancement ----
+:TEST_LAUNCH
+echo.
+echo --- Test de lancement ---
+"%PYTHON_CMD%" -c "import sys; sys.path.insert(0, r'%APP_DIR%'); from app.engine.pdf_utils import PAGE_SIZES; print('       [OK] Moteur PDF charge'); print('       Tailles:', ', '.join(PAGE_SIZES.keys()))" 2>&1
+if %ERRORLEVEL% neq 0 (
+    echo       [ERREUR] Le moteur PDF ne se charge pas correctement.
+    echo       Tentative de diagnostic...
+    "%PYTHON_CMD%" -c "import sys; sys.path.insert(0, r'%APP_DIR%'); import app" 2>&1
+) else (
+    echo       [OK] Application prete.
+)
+goto :EOF
+
 :: ============================================================
 :: INSTALLATION
 :: ============================================================
@@ -49,7 +231,7 @@ echo ============================================================
 echo.
 
 :: Verifier si deja installe
-if exist "%INSTALL_DIR%\app\main.py" (
+if exist "%APP_DIR%\main.py" (
     echo [!] L'application est deja installee dans :
     echo     %INSTALL_DIR%
     echo.
@@ -58,110 +240,48 @@ if exist "%INSTALL_DIR%\app\main.py" (
     echo.
     echo Suppression de l'ancienne installation...
     rmdir /s /q "%APP_DIR%" 2>nul
+    del "%EXE_PATH%" 2>nul
 )
 
-:: Creer le repertoire d'installation
-set "EXE_PATH=%INSTALL_DIR%\CopydevImposingTool.exe"
-
-echo [1/8] Creation du repertoire d'installation...
+:: Creer les repertoires
+echo [1/7] Creation des repertoires...
 if not exist "%INSTALL_DIR%" mkdir "%INSTALL_DIR%"
 if not exist "%INSTALL_DIR%\temp" mkdir "%INSTALL_DIR%\temp"
+echo       [OK] %INSTALL_DIR%
 
-:: ---- GIT ----
-:INSTALL_GIT
-echo [2/8] Verification de Git...
-where git >nul 2>&1
-if %ERRORLEVEL%==0 (
-    echo       Git est deja installe.
-    set "GIT_CMD=git"
-    goto INSTALL_PYTHON
-)
-
-:: Git portable
-if exist "%INSTALL_DIR%\git\cmd\git.exe" (
-    echo       Git portable detecte.
-    set "GIT_CMD=%INSTALL_DIR%\git\cmd\git.exe"
-    goto INSTALL_PYTHON
-)
-
-echo       Telechargement de Git portable...
-if not exist "%INSTALL_DIR%\git" mkdir "%INSTALL_DIR%\git"
-powershell -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%GIT_URL%' -OutFile '%INSTALL_DIR%\temp\git.zip' }" 2>nul
-if not exist "%INSTALL_DIR%\temp\git.zip" (
-    echo [ERREUR] Impossible de telecharger Git.
-    echo Verifiez votre connexion internet.
+:: Git
+echo.
+echo [2/7] Git...
+call :SETUP_GIT
+if not defined GIT_CMD (
+    echo [ERREUR FATALE] Git n'a pas pu etre installe.
     pause
     goto MENU
 )
-echo       Extraction de Git...
-powershell -Command "Expand-Archive -Force '%INSTALL_DIR%\temp\git.zip' '%INSTALL_DIR%\git'" 2>nul
-del "%INSTALL_DIR%\temp\git.zip" 2>nul
-set "GIT_CMD=%INSTALL_DIR%\git\cmd\git.exe"
-echo       Git portable installe.
 
-:: ---- PYTHON ----
-:INSTALL_PYTHON
-echo [3/8] Verification de Python...
-
-:: Verifier Python systeme
-where python >nul 2>&1
-if %ERRORLEVEL%==0 (
-    for /f "tokens=*" %%i in ('python --version 2^>^&1') do set "PY_VER=%%i"
-    echo       !PY_VER! detecte.
-    set "PYTHON_CMD=python"
-    goto INSTALL_PIP
-)
-
-:: Python embarque
-if exist "%PYTHON_DIR%\python.exe" (
-    echo       Python embarque detecte.
-    set "PYTHON_CMD=%PYTHON_DIR%\python.exe"
-    goto INSTALL_PIP
-)
-
-echo       Telechargement de Python %PYTHON_VERSION% embarque...
-if not exist "%PYTHON_DIR%" mkdir "%PYTHON_DIR%"
-powershell -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%PYTHON_URL%' -OutFile '%INSTALL_DIR%\temp\python.zip' }" 2>nul
-if not exist "%INSTALL_DIR%\temp\python.zip" (
-    echo [ERREUR] Impossible de telecharger Python.
+:: Python
+echo.
+echo [3/7] Python...
+call :SETUP_PYTHON
+if not defined PYTHON_CMD (
+    echo [ERREUR FATALE] Python n'a pas pu etre installe.
     pause
     goto MENU
 )
-echo       Extraction de Python...
-powershell -Command "Expand-Archive -Force '%INSTALL_DIR%\temp\python.zip' '%PYTHON_DIR%'" 2>nul
-del "%INSTALL_DIR%\temp\python.zip" 2>nul
 
-:: Activer pip dans Python embarque (decommenter import site)
-for %%f in ("%PYTHON_DIR%\python*._pth") do (
-    powershell -Command "(Get-Content '%%f') -replace '#import site','import site' | Set-Content '%%f'"
-)
-set "PYTHON_CMD=%PYTHON_DIR%\python.exe"
-echo       Python %PYTHON_VERSION% embarque installe.
+:: Pip
+echo.
+echo [4/7] Pip...
+call :SETUP_PIP
 
-:: ---- PIP ----
-:INSTALL_PIP
-echo [4/8] Verification de pip...
-"%PYTHON_CMD%" -m pip --version >nul 2>&1
-if %ERRORLEVEL%==0 (
-    echo       pip est deja installe.
-    goto INSTALL_DEPS
-)
+:: Dependances
+echo.
+echo [5/7] Dependances...
+call :SETUP_DEPS
 
-echo       Installation de pip...
-powershell -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%GET_PIP_URL%' -OutFile '%INSTALL_DIR%\temp\get-pip.py' }" 2>nul
-"%PYTHON_CMD%" "%INSTALL_DIR%\temp\get-pip.py" --no-warn-script-location >nul 2>&1
-del "%INSTALL_DIR%\temp\get-pip.py" 2>nul
-echo       pip installe.
-
-:: ---- DEPENDANCES ----
-:INSTALL_DEPS
-echo [5/8] Installation des dependances Python...
-"%PYTHON_CMD%" -m pip install --upgrade --no-warn-script-location PyQt6 pypdf reportlab pypdfium2 pyinstaller 2>&1 | findstr /i "Successfully already"
-echo       Dependances installees.
-
-:: ---- CODE SOURCE ----
-:INSTALL_CODE
-echo [6/8] Telechargement du code source...
+:: Code source
+echo.
+echo [6/7] Code source...
 if exist "%APP_DIR%\.git" (
     echo       Mise a jour du code existant...
     pushd "%APP_DIR%"
@@ -169,84 +289,42 @@ if exist "%APP_DIR%\.git" (
     popd
 ) else (
     if exist "%APP_DIR%" rmdir /s /q "%APP_DIR%"
+    echo       Clonage depuis %GITEA_REPO%...
     "%GIT_CMD%" clone "%GITEA_REPO%" "%APP_DIR%" 2>&1
 )
 if not exist "%APP_DIR%\main.py" (
-    echo [ERREUR] Le telechargement du code a echoue.
-    echo Verifiez l'acces a %GITEA_REPO%
+    echo       [ERREUR] main.py introuvable apres clonage.
+    echo       Verifiez l'acces a %GITEA_REPO%
     pause
     goto MENU
 )
-echo       Code source telecharge.
+echo       [OK] Code source telecharge.
 
-:: ---- COMPILATION EXE ----
-:INSTALL_BUILD
-echo [7/8] Compilation de l'executable...
-echo       (cette etape peut prendre quelques minutes)
-pushd "%APP_DIR%"
-"%PYTHON_CMD%" -m PyInstaller --onefile --noconsole --name CopydevImposingTool ^
-    --icon "%APP_DIR%\resources\logo.png" ^
-    --add-data "resources;resources" ^
-    --hidden-import pypdf ^
-    --hidden-import reportlab ^
-    --hidden-import reportlab.pdfgen ^
-    --hidden-import reportlab.pdfgen.canvas ^
-    --hidden-import reportlab.lib ^
-    --hidden-import reportlab.lib.pagesizes ^
-    --hidden-import reportlab.lib.units ^
-    --hidden-import reportlab.lib.colors ^
-    --hidden-import pypdfium2 ^
-    --hidden-import pypdfium2._helpers ^
-    --distpath "%INSTALL_DIR%" ^
-    --workpath "%INSTALL_DIR%\temp\build" ^
-    --specpath "%INSTALL_DIR%\temp" ^
-    main.py >nul 2>&1
-popd
+:: Raccourcis
+echo.
+echo [7/7] Raccourcis et lanceurs...
+call :SETUP_SHORTCUTS
 
-if not exist "%EXE_PATH%" (
-    echo [!] La compilation a echoue. Utilisation du lanceur Python.
-    :: Fallback : lanceur .vbs
-    (
-        echo Set WshShell = CreateObject^("WScript.Shell"^)
-        echo WshShell.CurrentDirectory = "%APP_DIR%"
-        echo WshShell.Run """%PYTHON_CMD%"" ""%APP_DIR%\main.py""", 0, False
-    ) > "%INSTALL_DIR%\lancer.vbs"
-    set "LAUNCH_TARGET=%INSTALL_DIR%\lancer.vbs"
-    set "LAUNCH_ICON="
-) else (
-    echo       Executable compile : CopydevImposingTool.exe
-    set "LAUNCH_TARGET=%EXE_PATH%"
-    set "LAUNCH_ICON=%EXE_PATH%"
-)
+:: Test
+echo.
+echo [TEST] Verification de l'installation...
+call :TEST_LAUNCH
 
-:: ---- RACCOURCIS ----
-:INSTALL_SHORTCUTS
-echo [8/8] Creation des raccourcis...
-
-:: Raccourci Bureau
-powershell -Command "& { $WshShell = New-Object -ComObject WScript.Shell; $Shortcut = $WshShell.CreateShortcut([Environment]::GetFolderPath('Desktop') + '\%SHORTCUT_NAME%.lnk'); $Shortcut.TargetPath = '%LAUNCH_TARGET%'; $Shortcut.WorkingDirectory = '%INSTALL_DIR%'; $Shortcut.Description = '%APP_NAME%'; if ('%LAUNCH_ICON%' -ne '') { $Shortcut.IconLocation = '%LAUNCH_ICON%,0' }; $Shortcut.Save() }" 2>nul
-echo       Raccourci Bureau cree.
-
-:: Raccourci Menu Demarrer
-set "START_MENU=%APPDATA%\Microsoft\Windows\Start Menu\Programs"
-powershell -Command "& { $WshShell = New-Object -ComObject WScript.Shell; $Shortcut = $WshShell.CreateShortcut('%START_MENU%\%SHORTCUT_NAME%.lnk'); $Shortcut.TargetPath = '%LAUNCH_TARGET%'; $Shortcut.WorkingDirectory = '%INSTALL_DIR%'; $Shortcut.Description = '%APP_NAME%'; if ('%LAUNCH_ICON%' -ne '') { $Shortcut.IconLocation = '%LAUNCH_ICON%,0' }; $Shortcut.Save() }" 2>nul
-echo       Raccourci Menu Demarrer cree.
-
-:: Nettoyer temp et fichiers de build
+:: Nettoyer temp
 rmdir /s /q "%INSTALL_DIR%\temp" 2>nul
 
-:: ---- FIN INSTALLATION ----
+:: Resume
 echo.
 echo ============================================================
 echo    INSTALLATION TERMINEE
 echo ============================================================
 echo.
-echo    Dossier   : %INSTALL_DIR%
-if exist "%EXE_PATH%" (
-echo    Executable: CopydevImposingTool.exe
-)
-echo    Lanceur   : Raccourci Bureau ou Menu Demarrer
-echo               "%SHORTCUT_NAME%"
+echo    Dossier : %INSTALL_DIR%
+echo    Python  : %PYTHON_CMD%
+echo.
+echo    Pour lancer : raccourci Bureau "%SHORTCUT_NAME%"
+echo    Ou en ligne de commande :
+echo       "%PYTHON_CMD%" "%APP_DIR%\main.py"
 echo.
 echo    Mot de passe requis au lancement.
 echo.
@@ -265,87 +343,61 @@ echo.
 
 if not exist "%APP_DIR%\main.py" (
     echo [!] L'application n'est pas installee.
-    echo     Lancez d'abord l'installation.
+    echo     Lancez d'abord l'installation (option 1).
     echo.
     pause
     goto MENU
 )
 
-:: Determiner Git
-where git >nul 2>&1
-if %ERRORLEVEL%==0 (
-    set "GIT_CMD=git"
-) else if exist "%INSTALL_DIR%\git\cmd\git.exe" (
-    set "GIT_CMD=%INSTALL_DIR%\git\cmd\git.exe"
-) else (
-    echo [ERREUR] Git introuvable. Reinstallez l'application.
+:: Detecter Git
+echo [1/4] Detection de Git...
+call :SETUP_GIT
+if not defined GIT_CMD (
+    echo [ERREUR] Git introuvable. Utilisez l'option 3 (Reparer).
     pause
     goto MENU
 )
 
-:: Determiner Python
-where python >nul 2>&1
-if %ERRORLEVEL%==0 (
-    set "PYTHON_CMD=python"
-) else if exist "%PYTHON_DIR%\python.exe" (
-    set "PYTHON_CMD=%PYTHON_DIR%\python.exe"
-) else (
-    echo [ERREUR] Python introuvable. Reinstallez l'application.
+:: Detecter Python
+echo.
+echo [2/4] Detection de Python...
+call :SETUP_PYTHON
+if not defined PYTHON_CMD (
+    echo [ERREUR] Python introuvable. Utilisez l'option 3 (Reparer).
     pause
     goto MENU
 )
 
-echo [1/3] Mise a jour du code source...
+:: Mise a jour du code
+echo.
+echo [3/4] Mise a jour du code source...
 pushd "%APP_DIR%"
 "%GIT_CMD%" fetch origin 2>&1
 
-:: Afficher les changements
 for /f %%i in ('"%GIT_CMD%" rev-list HEAD..origin/master --count 2^>nul') do set "COMMITS=%%i"
 if "!COMMITS!"=="0" (
     echo       Deja a jour !
     popd
-    echo.
-    pause
-    goto MENU
-)
-echo       !COMMITS! nouveau(x) commit(s) disponible(s).
-"%GIT_CMD%" log --oneline HEAD..origin/master 2>nul
-echo.
-
-"%GIT_CMD%" pull origin master 2>&1
-popd
-echo       Code mis a jour.
-
-echo [2/4] Mise a jour des dependances...
-"%PYTHON_CMD%" -m pip install --upgrade --no-warn-script-location PyQt6 pypdf reportlab pypdfium2 pyinstaller 2>&1 | findstr /i "Successfully already"
-
-echo [3/4] Recompilation de l'executable...
-pushd "%APP_DIR%"
-"%PYTHON_CMD%" -m PyInstaller --onefile --noconsole --name CopydevImposingTool ^
-    --add-data "resources;resources" ^
-    --hidden-import pypdf ^
-    --hidden-import reportlab ^
-    --hidden-import reportlab.pdfgen ^
-    --hidden-import reportlab.pdfgen.canvas ^
-    --hidden-import reportlab.lib ^
-    --hidden-import reportlab.lib.pagesizes ^
-    --hidden-import reportlab.lib.units ^
-    --hidden-import reportlab.lib.colors ^
-    --hidden-import pypdfium2 ^
-    --hidden-import pypdfium2._helpers ^
-    --distpath "%INSTALL_DIR%" ^
-    --workpath "%INSTALL_DIR%\temp\build" ^
-    --specpath "%INSTALL_DIR%\temp" ^
-    main.py >nul 2>&1
-popd
-rmdir /s /q "%INSTALL_DIR%\temp" 2>nul
-if exist "%INSTALL_DIR%\CopydevImposingTool.exe" (
-    echo       Executable recompile.
 ) else (
-    echo [!] Compilation echouee, l'ancienne version reste active.
+    echo       !COMMITS! nouveau^(x^) commit^(s^) disponible^(s^):
+    echo.
+    "%GIT_CMD%" log --oneline HEAD..origin/master 2>nul
+    echo.
+    "%GIT_CMD%" pull origin master 2>&1
+    popd
+    echo       [OK] Code mis a jour.
 )
 
-echo [4/4] Termine !
+:: Mise a jour dependances
+echo.
+echo [4/4] Mise a jour des dependances...
+call :SETUP_DEPS
+
+:: Test
+echo.
+echo [TEST] Verification...
+call :TEST_LAUNCH
+
 echo.
 echo ============================================================
 echo    MISE A JOUR TERMINEE
@@ -354,6 +406,70 @@ echo.
 pause
 goto MENU
 
+:: ============================================================
+:: REPARATION
+:: ============================================================
+:REPAIR
+cls
+echo ============================================================
+echo    REPARATION de %APP_NAME%
+echo ============================================================
+echo.
+echo    Cette option reinstalle Python, pip et les dependances
+echo    sans toucher au code source.
+echo.
+
+if not exist "%INSTALL_DIR%" mkdir "%INSTALL_DIR%"
+
+:: Supprimer l'ancien Python embarque
+echo [1/5] Nettoyage de l'ancien Python embarque...
+if exist "%PYTHON_DIR%" (
+    rmdir /s /q "%PYTHON_DIR%" 2>nul
+    echo       Ancien Python supprime.
+)
+
+:: Reinstaller Python
+echo.
+echo [2/5] Installation de Python...
+call :SETUP_PYTHON
+if not defined PYTHON_CMD (
+    echo [ERREUR FATALE] Python n'a pas pu etre installe.
+    pause
+    goto MENU
+)
+
+:: Pip
+echo.
+echo [3/5] Installation de pip...
+call :SETUP_PIP
+
+:: Dependances
+echo.
+echo [4/5] Installation des dependances...
+call :SETUP_DEPS
+
+:: Test
+echo.
+echo [5/5] Verification...
+call :TEST_LAUNCH
+
+:: Recreer les lanceurs avec le bon chemin Python
+if exist "%APP_DIR%\main.py" (
+    echo.
+    echo Mise a jour des lanceurs...
+    call :SETUP_SHORTCUTS
+)
+
+echo.
+echo ============================================================
+echo    REPARATION TERMINEE
+echo ============================================================
+echo.
+echo    Python : %PYTHON_CMD%
+echo.
+pause
+goto MENU
+
 :: ============================================================
 :: DESINSTALLATION
 :: ============================================================
@@ -385,12 +501,12 @@ echo.
 echo [1/3] Suppression des raccourcis...
 del "%USERPROFILE%\Desktop\%SHORTCUT_NAME%.lnk" 2>nul
 del "%APPDATA%\Microsoft\Windows\Start Menu\Programs\%SHORTCUT_NAME%.lnk" 2>nul
-echo       Raccourcis supprimes.
+echo       [OK] Raccourcis supprimes.
 
 echo [2/3] Suppression des fichiers...
-:: Tuer les processus Python potentiellement en cours
 taskkill /f /im python.exe 2>nul
 taskkill /f /im pythonw.exe 2>nul
+taskkill /f /im CopydevImposingTool.exe 2>nul
 timeout /t 2 >nul
 
 rmdir /s /q "%INSTALL_DIR%" 2>nul
@@ -398,7 +514,7 @@ if exist "%INSTALL_DIR%" (
     echo [!] Certains fichiers n'ont pas pu etre supprimes.
     echo     Supprimez manuellement : %INSTALL_DIR%
 ) else (
-    echo       Fichiers supprimes.
+    echo       [OK] Fichiers supprimes.
 )
 
 echo [3/3] Desinstallation terminee.