[Windows] Chrome Computer Use trusted RPC failure and GPU/mouse stutter after desktop app update

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

26.814.5167.0

What subscription do you have?

ChatGPT Pro

What platform is your computer?

Windows 11 Pro, build 26200, x64

What issue are you seeing?

Summary

After two ChatGPT Windows desktop app updates during the past two days, the app became noticeably slower, Intel GPU usage increased, and the mouse began intermittently freezing or stuttering while moving.

The mouse problem occurs only while the new ChatGPT desktop app is running. When the app is fully closed, mouse movement and Windows performance return to normal.

After the latest update, Chrome Computer Use also stopped working. Every @Chrome attempt now fails immediately with this error:

Trusted RPC dependency must resolve within a configured trusted code path: file:///C:/Users/ident/.codex/plugins/cache/openai-bundled/browser/26.814.41407/scripts/browser-service.mjs

Chrome Computer Use worked before the update.

Environment

ChatGPT Windows app: 26.814.5167.0

Windows 11 Pro, build 26200, x64

Subscription: ChatGPT Pro

Google Chrome: 151.0.7922.170, 64-bit

Official ChatGPT Chrome extension: 1.2.27259.19709

Computer Use shows Google Chrome enabled with the green “Browser extension installed” status.

The system has Intel Iris Xe Graphics and an NVIDIA GPU.

Impact

Chrome browser control is completely unavailable, preventing completion of authorized work in an existing signed-in Chrome session. The app’s performance regression also makes manual work difficult because mouse movement intermittently stutters while the app is running.

What steps can reproduce the bug?

Chrome connection failure

Open ChatGPT Windows app version 26.814.5167.0.

Open a Work or Codex conversation.

Confirm that Google Chrome is enabled under Settings → Computer use and shows “Browser extension installed.”

Open Chrome with the official ChatGPT extension enabled.

Start any @Chrome task that requires access to the current Chrome session.

The task fails immediately with the Trusted RPC dependency error shown in the issue description.

Clean-profile isolation test

Create a brand-new Chrome profile.

Do not install any other extensions.

Install and enable only the official OpenAI ChatGPT extension.

Confirm that the extension installation completes and the “Welcome to ChatGPT for Chrome” page opens.

Retry an @Chrome task.

The exact same Trusted RPC dependency error occurs.

Performance regression

Start the new ChatGPT Windows desktop app.

Open a normal conversation, Work, or Codex.

Use the app for several minutes.

Observe increased Intel GPU 3D usage and intermittent mouse freezing or stuttering.

Fully exit the ChatGPT app.

Mouse movement and general Windows performance return to normal.

Troubleshooting already completed

Restarted Windows.

Reinstalled the ChatGPT Windows app.

Updated and restarted Google Chrome.

Disconnected and reconnected Chrome under Computer use.

Tested with a clean Chrome profile containing no other extensions.

Repeated controlled tests with plain chat, the built-in browser, and @Chrome.

The problem persists.

What is the expected behavior?

@Chrome should connect to the enabled official ChatGPT Chrome extension and access the active Chrome profile without a trusted-code-path error.

A clean Chrome profile with only the official extension should work normally.

The ChatGPT Windows app should not cause sustained or excessive GPU or memory usage during ordinary use.

Mouse movement and Windows responsiveness should remain normal while the app is running.

Updating the desktop app should not break an existing working Chrome Computer Use connection.

Additional information

OpenAI in-app Feedback ID:

019fe1d0-45df-75a0-9883-7666f46a5da3

The issue was also submitted through the in-app /feedback command with current ChatGPT session logs included.

Observed during controlled testing:

Plain chat: no consistent mouse lag was reproduced during the short test.

Built-in browser: no consistent mouse lag was reproduced during the short test.

@Chrome: failed immediately with the Trusted RPC dependency error.

During captured testing, activity was primarily on Intel Iris Xe Graphics; the NVIDIA GPU remained idle.

Earlier sessions showed substantially higher ChatGPT/Codex memory usage and high Intel GPU 3D activity associated with mouse stuttering.
Screenshots available for attachment:

Task Manager with expanded ChatGPT processes

Performance → GPU

Chrome version

Official ChatGPT Chrome extension

Computer Use connection state

Please investigate whether the recent Windows desktop app update introduced a regression in the bundled browser/plugin trusted-code-path configuration or GPU rendering process.

Start by reproducing the @Chrome failure in the Windows app using a clean Chrome profile and the official extension. Inspect the bundled dependency path mentioned in the error, browser-service.mjs, alongside the app update behavior and GPU symptoms. Done means Chrome Computer Use works again without the trusted-code-path error and ordinary app use no longer causes mouse stutter.