Codex failed to start. EPERM: operation not permitted, mkdir 'C:\Users\MyNameSur name\.codex\sqlite'

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

Latest from Microsoft Store 2026-03-13

What subscription do you have?

business

What platform is your computer?

Windows

What issue are you seeing?

When staring codex, it wont start. and give error dialog.

Starting codes does not support unicode characters in file that contain person name like Tom Leppä.

Like scandic characters ä, ö, å etc.

C:\Users\ÄijöÄyräpää\.codex\sqlite'

THE ERROR

[Window Title]
Codex

[Main Instruction]
Codex failed to start.

[Content]
EPERM: operation not permitted, mkdir 'C:\Users\MyNameSur name\.codex\sqlite'

[Quit]

What steps can reproduce the bug?

Wihndows user having ä, ö etc. in username start Codex and it won't start.

What is the expected behavior?

_No response_

Additional information

_No response_