Windows app starts without renderer or app-server and shows no window

What version of the Codex App are you using (From “About Codex” dialog)?

26.825.6671.0

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Windows 11, 64-bit (x64), OS build 26200, Region: Singapore

What issue are you seeing?

Version: 26.825.6671.0
Windows activation succeeds with TWinUI event 1621 status 0.
ChatGPT.exe starts main, crashpad, GPU, and utility processes.
No renderer process is created.
codex.exe app-server is not launched.
All processes remain responsive with MainWindowHandle=0.
Codex doctor reports install, auth, WebSocket, and reachability healthy.

What steps can reproduce the bug?

1. Install or update the ChatGPT/Codex Windows app from the Microsoft Store.
2. Restart Windows.
3. Launch ChatGPT from the Start menu.
4. Wait for at least 30 seconds.
5. No application window appears.
6. Open Task Manager and observe that several ChatGPT.exe processes are running.
7. The main process, crashpad, GPU, and utility processes start, but no renderer process or codex.exe app-server process is created.
8. Closing all ChatGPT.exe processes and launching the app again produces the same result.
9. Repairing, resetting, uninstalling, and reinstalling the app does not resolve the issue.

What is the expected behavior?

No response

Additional information

No response

Start by investigating the Windows launch path described in the issue and compare the ChatGPT.exe process tree with the missing renderer and codex.exe app-server processes. Reproduce after a restart and collect relevant startup logs; done means identifying why those processes are not created and confirming that the app displays a window.