failed to spawn codex-windows-sandbox-setup.exe: program not found

Open 💬 5 comments Opened May 17, 2026 by dfischer

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

26.513.40821

What subscription do you have?

Pro

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

Something got installed yesterday 5/16/26 either a windows update and or the codex app and what was otherwise a successful installation turned all of the sudden into an endless loop of the app asking for sandbox setup.

What steps can reproduce the bug?

Feedback ID: no-active-thread-019e37bb-da5e-73b0-b4f7-ce61b574f592

What is the expected behavior?

That the request for sandbox setup is complete after clicking the button.

Additional information

_No response_

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