Windows app 26.608.1337.0 crashes immediately after launch in windows-updater.node

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

26.608.1337.0

What subscription do you have?

ChatGPT Pro

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

Codex Windows app crashes immediately after launch.

Version

• Codex Windows app: 26.608.1337.0
• Package: OpenAI.Codex_26.608.1337.0_x64__2p2nqsd0c76g0
• WebView2 Runtime: 149.0.4022.52

Platform

• Windows 11 x64
• User profile path contains non-ASCII characters and parentheses:

• C:\Users\이동환(DonghwanLee)

Observed behavior

• The Codex Windows app crashes immediately after launch.
• No visible Codex window appears.
• AppModel creates the Codex process, then the AppX container is deleted a few seconds later.
• Application Event Log has no normal crash entry.
• Crashpad dump is generated on every launch.
• The Codex app log stops after:

Launching app ... enableUpdater=true ... platform=win32
Appshot hotkey inactive ...

Crash dump string scan

The latest Crashpad dump was scanned for strings. Results:

FOUND: windows-updater.node
FOUND: KERNELBASE.dll
not found: E06D7363
not found: SetNamedSecurityInfoW
not found: Access is denied
not found: Crashpad

What I tried

• Reinstalled Codex with winget uninstall Codex and winget install Codex -s msstore
• Ran Reset-AppxPackage
• Renamed %USERPROFILE%\.codex
• Confirmed WebView2 Runtime exists
• Confirmed Codex AppX package is installed
• Checked AppModel Runtime logs
• Checked Codex LocalCache logs
• Checked Crashpad dump generation

Relevant AppModel Runtime behavior

AppModel Runtime shows that the Codex process is created successfully, then the AppX container is deleted a few seconds later.

OpenAI.Codex_26.608.1337.0_x64__2p2nqsd0c76g0 package creates the OpenAI.Codex_2p2nqsd0c76g0!App process.
A few seconds later, the desktop AppX container is deleted.

Expected behavior

The Codex Windows app should open normally.

Additional note

I have not attached the .dmp file publicly because it may contain sensitive local environment information. I can provide it if maintainers request it through a safe channel.

What steps can reproduce the bug?

1. Install Codex Windows app from Microsoft Store / winget.

winget install Codex -s msstore

1. Launch the Codex app from the Start menu, or launch it through AppX activation:

$app = Get-StartApps | Where-Object { $_.Name -like "*Codex*" } | Select-Object -First 1
explorer.exe "shell:AppsFolder\$($app.AppID)"

1. Wait a few seconds.

1. The Codex window never appears. AppModel Runtime shows that the Codex process is created, then the desktop AppX container is deleted a few seconds later.

1. A Crashpad dump is generated on every launch under:

%LOCALAPPDATA%\Packages\OpenAI.Codex_2p2nqsd0c76g0\LocalCache\Roaming\Codex\web\Codex\Crashpad\reports

1. The Codex log stops after startup messages only:

Launching app ... enableUpdater=true ... platform=win32
Appshot hotkey inactive ...

1. I scanned the latest Crashpad dump for relevant strings and found:

FOUND: windows-updater.node
FOUND: KERNELBASE.dll
not found: E06D7363
not found: SetNamedSecurityInfoW
not found: Access is denied
not found: Crashpad

Session ID: Not applicable. The app crashes before any usable session is created.

Token limit usage: Not applicable.

Context window usage: Not applicable.

What is the expected behavior?

The Codex Windows app should open normally after launch.

Expected behavior:

• A Codex window should appear.
• The app should reach the login screen or main screen.
• The AppX container should remain running instead of being deleted a few seconds after launch.
• No Crashpad dump should be generated on every launch.
• The app should not crash in or around windows-updater.node.

Additional information

_No response_