diff --git a/desktop/build-windows.bat b/desktop/build-windows.bat
index 0c508c0..9bdee72 100644
--- a/desktop/build-windows.bat
+++ b/desktop/build-windows.bat
@@ -10,6 +10,11 @@ echo   ObsiGate Desktop — Build Windows
 echo ========================================
 echo.
 
+REM ── 0. Kill any leftover backend from a previous run ──────────
+echo [0/5] Killing leftover Python processes...
+taskkill /F /IM python.exe 2>nul
+echo.
+
 REM ── 1. Vérifier les prérequis ─────────────────────────────────
 echo [1/5] Verifying prerequisites...
 where cargo >nul 2>&1 || (echo ❌ Rust/Cargo not found. Install from https://rustup.rs & exit /b 1)
@@ -51,8 +56,6 @@ echo ✅ Build successful
 
 REM ── 4. Copier le runtime à côté de l'exécutable ───────────────
 echo [4/5] Copying runtime to output dir...
-REM Kill any leftover backend from a previous run
-taskkill /F /IM python.exe /FI "WINDOWTITLE eq *" 2>nul
 set "OUTDIR=target\x86_64-pc-windows-msvc\release"
 if exist "%OUTDIR%\python-embed" rmdir /s /q "%OUTDIR%\python-embed" 2>nul
 if exist "%OUTDIR%\backend" rmdir /s /q "%OUTDIR%\backend" 2>nul