openai / openai/codex

Codex Windows app stuck on startup logo / blank screen (Win11 25H2)

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app bug windows-os
Dominant language
Rust
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Forks
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Description

App package/version: OpenAI.Codex_26.901.6511.0_x64

Windows version/build: Windows 11 25H2 (26200.9278)

What happens: Opens to logo/blank screen and never loads

Error: ChatGPT.exe 152.0.7977.83 “stopped responding”

When it started: (date/time) / after (Windows/app update?)

Tried: restart, network change, repair/reset, reinstall, --disable-gpu, MSIX reinstall

Works on web: Yes (Chrome works normally)
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Image
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Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No repository file, test, or entry point is identified. Start by reproducing the blank-screen hang with OpenAI.Codex_26.901.6511.0_x64 on Windows 11 25H2 build 26200.9278, then compare behavior with the listed repair, reset, reinstall, and --disable-gpu attempts. Done means identifying the startup failure and verifying a fix for the Windows app.

Written by the indexing model from the issue text.

Assessment

Domain
desktop-dev, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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