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How do I resolve the "codex-windows-sandbox-setup.exe not found for windows" error when launching Codex?

OpenAI Developer Community May 20, 2026
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Welcome to the forum. Have you seen this post? Codex CLI on Windows update fails Codex > Hi guys, I noticed recently the Codex cli on windows on start when there is an update now it has a menu of three items one of them is run the update. Previously it was displaying a message with the exact command to run the update. Now that message is gone. When you select the first item to run the update, the update fails because codex is running it from its own sandbox and hits the permission wall. While trying to update it displays the command to run. Basically you need to close the termin…

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