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Windows desktop app crashes on launch with code=3221225477 #19258
Description
Environment:
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Windows desktop app downloaded from the official Codex Windows download page
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Also reproduced with Microsoft Store version
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Windows account: local Administrator
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WSL is installed but no Linux distro is configured for use
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Tried both native sandbox modes:
[windows] sandbox = "elevated"[windows] sandbox = "unelevated"
Observed behavior:
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App crashes immediately on launch before usable UI appears
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Error shown:
code=3221225477- sometimes
Most recent error: None - previously also saw
Most recent error: write EPIPE
Additional evidence:
C:\Users\Administrator\.codexis created- files like
logs_2.sqliteandstate_5.sqliteexist - no
.sandboxdirectory is created, so there is nosandbox.log
Reproduction:
- Install Codex Windows desktop app from official website or Microsoft Store
- Launch app
- Crash happens immediately
Activity
github-actions commentedon Apr 24, 2026
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Wangnov commentedon May 22, 2026
If you want to rule out an outdated/broken Microsoft Store package by manually trying the latest official MSIX, this unofficial mirror may help:
https://github.com/Wangnov/codex-app-mirror
Latest Windows MSIX:
https://codexapp.agentsmirror.com/latest/win
It mirrors the official Codex MSIX resolved from Microsoft Store ProductId
9PLM9XGG6VKSand includes checksums/release metadata. This is not an official OpenAI installer and may not address this specific crash, but it can help when the Store path itself is unreliable.