Windows 10 Language Packs -

Error codes, some dialog boxes, and legacy Control Panel items may remain English.

If you are managing multiple devices or have limited internet access, you may need to install language packs manually using files or Local Experience Packs (LXPs): Volume Licensing windows 10 language packs

for the changes to take full effect across all menus and apps. Key Considerations Language packs for Windows - Microsoft Support Error codes, some dialog boxes, and legacy Control

Last updated: October 2023 – applies to Windows 10 versions 21H2, 22H2, and later. some dialog boxes