Thank you! The contents of the second window (the ComfyUI process) will be necessary for understanding what's going on. Looks like launcher finds both files it needs, but Comfy is unable to start for some reason. What GPU do you have? If you launch Standalone final\ComfyUI_windows_portable\run_nvidia_gpu.bat or Standalone final\ComfyUI_windows_portable\run_cpu.bat , what happens?