diff --git a/backend/tauri/templates/installer.nsi b/backend/tauri/templates/installer.nsi
index 7bee062068..1d6ce47a9f 100644
--- a/backend/tauri/templates/installer.nsi
+++ b/backend/tauri/templates/installer.nsi
@@ -300,9 +300,17 @@ Function PageLeaveReinstall
   reinst_done:
 FunctionEnd
 
+Function CheckInstallDir
+  ${If} ${FileExists} "$INSTDIR\*.*"
+    MessageBox MB_ICONSTOP|MB_OK "The selected installation directory is not empty. Please choose an empty directory!"
+    Abort
+  ${EndIf}
+FunctionEnd
+
 ; 5. Choose install directoy page
 !define MUI_PAGE_CUSTOMFUNCTION_PRE SkipIfPassive
 !insertmacro MUI_PAGE_DIRECTORY
+!define MUI_PAGE_CUSTOMFUNCTION_LEAVE CheckInstallDir
 
 ; 6. Start menu shortcut page
 !define MUI_PAGE_CUSTOMFUNCTION_PRE SkipIfPassive