diff --git a/installers-conda/resources/post-install.bat b/installers-conda/resources/post-install.bat
index fd48e6c6e53..a45810e06d2 100644
--- a/installers-conda/resources/post-install.bat
+++ b/installers-conda/resources/post-install.bat
@@ -1,17 +1,24 @@
-rem This script launches Spyder after install
+@rem  This script launches Spyder after install
 @echo off
 
+if "%CI%"=="1" set no_launch_spyder=true
+if "%INSTALLER_UNATTENDED%"=="1" set no_launch_spyder=true
+if defined no_launch_spyder (
+    @echo Installing in CI or silent mode, do not launch Spyder
+    exit /b %errorlevel%
+)
+
 set mode=system
 if exist "%PREFIX%\.nonadmin" set mode=user
 
-rem Get shortcut path
+@rem  Get shortcut path
 for /F "tokens=*" %%i in (
     '%PREFIX%\python %PREFIX%\Scripts\menuinst_cli.py shortcut --mode=%mode%'
 ) do (
     set shortcut=%%~fi
 )
 
-rem Launch Spyder
+@rem  Launch Spyder
 set tmpdir=%TMP%\spyder
 set launch_script=%tmpdir%\launch_script.bat
 
@@ -21,6 +28,7 @@ echo @echo off
 echo :loop
 echo tasklist /fi "ImageName eq Spyder-*" /fo csv 2^>NUL ^| findstr /r "Spyder-.*Windows-x86_64.exe"^>NUL
 echo if "%%errorlevel%%"=="0" ^(
+echo     @rem  Installer is still running
 echo     timeout /t 1 /nobreak ^> nul
 echo     goto loop
 echo ^) else ^(
diff --git a/installers-conda/resources/post-install.sh b/installers-conda/resources/post-install.sh
index ee56875b5b3..a12cc1439be 100755
--- a/installers-conda/resources/post-install.sh
+++ b/installers-conda/resources/post-install.sh
@@ -186,7 +186,10 @@ fi
 echo "*** Post install script for ${INSTALLER_NAME} complete"
 
 # ---- Launch Spyder
-[[ -n "$CI" ]] && exit 0  # Running in CI, don't launch Spyder
+if [[ -n "$CI" || "$INSTALLER_UNATTENDED" == "1" ]]; then
+    echo Installing in CI or batch mode, do not launch Spyder
+    exit 0
+fi
 
 echo "Launching Spyder now..."
 if [[ "$OSTYPE" == "darwin"* ]]; then
diff --git a/installers-conda/resources/pre-install.bat b/installers-conda/resources/pre-install.bat
index 83cf5084652..ad3941c2b68 100644
--- a/installers-conda/resources/pre-install.bat
+++ b/installers-conda/resources/pre-install.bat
@@ -1,4 +1,4 @@
-rem Mark as conda-based-app
+@rem  Mark as conda-based-app
 set menudir=%PREFIX%\envs\spyder-runtime\Menu
 if not exist "%menudir%" mkdir "%menudir%"
 echo. > "%menudir%\conda-based-app"