After updated to 0.4.71 experiencing reg.exe shadow load(open without any direct comand of the model, a simple conversation create reg.exe tasks that not go) and bloat over time, causing 100% cpu use.
Going back to 69 version solves the problem. This version don´t open any reg.exe.
2 Likes
EricGT
February 7, 2026, 7:38am
2
Note: I am not an OpenAI employee.
Thanks for reporting this.
I searched the OpenAI Codex GitHub issues:
https://github.com/openai/codex/issues
and found a related issue:
opened 04:37AM - 06 Feb 26 UTC
bug
windows-os
extension
### What version of the IDE extension are you using?
0.4.71
### What subscript… ion do you have?
Plus
### Which IDE are you using?
VS Code
### What platform is your computer?
Microsoft Windows NT 10.0.19045.0 x64
### What issue are you seeing?
As soon as I enter a message into the extension, the CPU usage jumps to 100% and stays that way even after the model has finished answering and the machine is IDLE. The CPU is hogged by VS Code and System processes. The extension has to be disabled and refreshed for the CPU to go back to normal 3-5% normal levels.
Reverting to 0.4.69 fixes the issue, no high CPU usage and 3-5% when IDLE. So the problem seems unique to v 0.4.71.
### What steps can reproduce the bug?
Install or upgrade VS Code Open AI Codex version 0.4.71 and send a message to the model.
### What is the expected behavior?
Expected behavior is CPU idle usage as previous versions (around 3-5% when IDLE).
### Additional information
_No response_
Since OpenAI staff are already tracking this, please use the existing GitHub OpenAI Codex issue for further communication and updates.