Upgraded from Plus to Pro, and now Codex won't start
Open 💬 3 comments Opened Apr 14, 2026 by retrocoderz
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of the Codex App are you using (From “About Codex” dialog)?
Latest
What subscription do you have?
ChatGPT-Pro
What platform is your computer?
Windows
What issue are you seeing?
Codex won't start. Double-click it and it immediately closes (app window doesnt event load)
What steps can reproduce the bug?
Upgraded from Plus to Pro while Codex was running.
Closed Codex.
Tried to start Codex and it won't start.
Tried logging out from web, and still see the same issue
What is the expected behavior?
Codex starts
Additional information
_No response_
3 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Reviewed the other links and this issue is unrelated. The app just closed with no error, no information whatsoever.
Note: I did resolve it by rebooting my machine. This wasn't an OS/driver issue, however. Suspect there's something broken with the way codex handles user access changes (in this case PLUS > PRO).
I have the same problem