[Windows] Computer Use cannot enumerate or launch desktop apps on one machine

Environment

• Codex App: 26.803.10989.0 (Windows AppX package version)
• Computer Use plugin: 26.803.81509
• Platform: Microsoft Windows NT 10.0.26200.0 x64
• Subscription: ChatGPT subscription; exact tier unknown

Issue

Computer Use in the Codex desktop app cannot see or control any desktop apps on this Windows PC. The same account and workflow work normally on other computers.

Observed errors/states:

• Importing @oai/sky can fail with: EPERM: operation not permitted, lstat 'C:\Users\<redacted>\AppData\Local\OpenAI\Codex'.
• On retries where the module loads, list_apps() and list_windows() both return zero items even while WeChat is open.
• Launching C:\Program Files\Tencent\Weixin\Weixin.exe or Weixin.exe may fail with: failed to fetch shell:AppsFolder item: 找不到元素。 (0x80070490).

Result: Codex cannot open/control WeChat and cannot send a test message to File Transfer Assistant.

Reproduction

1. Open the Codex desktop app on the affected Windows PC.
2. Enable the Computer Use plugin/server and “Any App”, grant permissions, and unlock the session.
3. Open WeChat manually.
4. Ask Codex to use Computer Use to send a message to File Transfer Assistant.
5. Computer Use either fails while loading @oai/sky, returns zero apps/windows, or fails to launch WeChat with error 0x80070490.

The same account and task work normally on other computers.

Expected behavior

Computer Use should enumerate the open desktop windows and interact with WeChat, as it does on the user's other computers.

Troubleshooting already attempted

• Unlocked the session and granted all requested permissions.
• Enabled “Any App”.
• Restarted and retried the Computer Use plugin.
• Reinstalled/retried the plugin.
• Fully uninstalled and reinstalled the official Codex Windows app; the problem persists.

No raw logs, session ID, or other PII are attached.

Start by reproducing the failure in the Computer Use plugin around @oai/sky, list_apps(), list_windows(), and the Weixin.exe launch attempt. Compare the affected PC with a working Windows computer and gather the raw loading, enumeration, and 0x80070490 errors; done means desktop apps and windows enumerate and WeChat launches and can be controlled.