execution error: Io(Custom { kind: Other, error: "windows sandbox: spawn setup refresh" })
Open 💬 2 comments Opened Apr 24, 2026 by SunnyDesignor
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of Codex CLI is running?
0.124.0.0
What subscription do you have?
api
Which model were you using?
gpt-5.4
What platform is your computer?
Microsoft Windows NT 10.0.26200.0 x64
What terminal emulator and version are you using (if applicable)?
PowerShell 7.6
What issue are you seeing?
I keep getting errors when reading files, even after granting permissions.
execution error: Io(Custom { kind: Other, error: "windows sandbox: spawn setup refresh" })
What steps can reproduce the bug?
Get-ChildItem -Name | Select-Object -First 40
What is the expected behavior?
_No response_
Additional information
_No response_
2 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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This is 100% a CLI issue and not a problem in the Codex extension in VS Code. @etraut-openai