Windows Codex Desktop intercepts global Ctrl+C/Ctrl+V while running

Summary

On Windows, while Codex Desktop is running, global Ctrl+C and Ctrl+V stop working in other applications. The issue still happens when the Codex window is minimized. After fully quitting Codex Desktop, normal copy/paste behavior returns immediately.

This appears to be a desktop-app/global keyboard handling issue rather than a terminal focus issue.

Environment

• App: Codex Desktop for Windows
• Codex Desktop package: OpenAI.Codex_26.601.2237.0_x64__2p2nqsd0c76g0
• Codex.exe file/product version shown by Windows: 149.0.7827.54
• OS: Microsoft Windows NT 10.0.22631.0
• Shell in Codex thread: PowerShell

Reproduction

1. Start Codex Desktop on Windows.
2. Try to use Ctrl+C and Ctrl+V in another application, such as Notepad or an editor.
3. Minimize the Codex window and try Ctrl+C / Ctrl+V again in the other application.
4. Fully quit Codex Desktop.
5. Try Ctrl+C / Ctrl+V again in the same other application.

Expected behavior

When Codex Desktop is running, Ctrl+C and Ctrl+V should continue to work normally in other focused Windows applications unless the Codex window itself has focus and intentionally handles the shortcut.

Actual behavior

• While Codex Desktop is running, Ctrl+C and Ctrl+V do not work in other applications.
• The issue persists even if the Codex window is minimized.
• After fully quitting Codex Desktop, copy/paste works again.
• Ctrl+Shift+V still works in contexts where it is supported.

Notes

This seems distinct from existing Codex CLI/TUI paste issues because the problem affects other Windows applications while Codex Desktop is merely running in the background/minimized.