ERROR_MUI_INTLSETTINGS_UILANG_NOT_INSTALLED - 15107 (0x3B03)
UI language installation failed.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_MUI_INTLSETTINGS_UILANG_NOT_INSTALLED with the numeric value 15107 and hexadecimal representation 0x3B03 indicates that a required user interface language for international settings has not been installed on the system.
Error Details
This error typically occurs when an application or service attempts to use a UI language that is not available on the system. The error suggests that the necessary language pack or localization files are missing, preventing the requested UI language from being displayed correctly.
Usage Context
The ERROR_MUI_INTLSETTINGS_UILANG_NOT_INSTALLED error can be encountered in various scenarios where internationalization and localization features are utilized, such as:
- Language packs installation failures
- Application or system settings that require specific languages to be installed
- User interface customizations that depend on language availability
Developer Interpretation
Developers should interpret this error code as a signal that the requested UI language is not available. This can affect the user experience, particularly in applications that rely heavily on internationalization features.
Common Causes
The common causes of this error include:
- Missing or corrupted language packs
- Incorrect installation of language components
- Incomplete system updates or installations
- Misconfigured application settings requiring specific languages
Related Errors
ERROR_MUI_FILE_NOT_FOUND(12076, 0x4B5C)ERROR_MUI잘못된_설정(13089, 0x3A4D)ERROR_MUI_NO_LONG_NAME(12072, 0x4B54)
FAQ
Q: What does the error code 15107 mean?
A: The error code 15107 indicates that a required UI language for international settings is not installed on the system.
Q: How can I resolve this issue?
A: Ensure all necessary language packs are installed and correctly configured. Check for any missing or corrupted files, and verify that the system updates are complete.
Summary
The ERROR_MUI_INTLSETTINGS_UILANG_NOT_INSTALLED error code 15107 signifies a failure to install a required UI language for international settings. Developers should handle this error by ensuring all necessary language components are installed and correctly configured, thereby maintaining the integrity of user interface customizations.