Codex Windows app browser connection fails before reaching Chrome.

Resolved 💬 3 comments Opened May 31, 2026 by jenwolverton Closed Jun 12, 2026

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

OpenAI.Codex_26.527.3686.0_x64

What subscription do you have?

Personal Pro but I also bought team/workspace accidentally-waiting for that to expire

What platform is your computer?

inspiron 27 7710 all in one, Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

windows sandbox failed: spawn setup refresh
Log line:
failed to spawn C:\Users\jenwo\AppData\Local\OpenAI\Codex\bin\7dea4a003bc76627\codex-windows-sandbox-setup.exe:
The requested operation requires elevation. (os error 740)

What steps can reproduce the bug?

Notes:

  • Closing/reopening Codex did not fix it.
  • Running as administrator did not fix it.
  • Repair failed in Windows Settings.
  • Reset did not fix it.
  • Uninstall/reinstall did not fix it.
  • Main command runner sandbox setup from Program Files\WindowsApps appears to succeed, but browser/node helper uses the cached helper under AppData\Local and fails.

What is the expected behavior?

_No response_

Additional information

_No response_

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