ERROR_INVALID_RUNLEVEL_SETTING - 15401 (0x3C29)
The service has an invalid run level setting. The run level for a service must not be higher than the run level of its dependent services.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_INVALID_RUNLEVEL_SETTING error code indicates that a service's run level setting is invalid. Specifically, the run level of a service must not exceed the run levels of its dependent services.
Error Details
This error typically occurs during the initialization or configuration of Windows services. The run level of a service determines under which conditions it can be started and stopped. If a service's run level is set to a value that is higher than any of its dependent services, this error will be generated.
Usage Context
This error code is relevant in scenarios where the system attempts to manage or configure Windows services. It may appear during service startup, configuration changes, or when attempting to start a service with an invalid run level setting.
Developer Interpretation
Developers should ensure that all services have appropriate and consistent run levels. The run level of a dependent service must not be lower than the run level of its parent service. This ensures that services are started in the correct order, respecting their dependencies.
Related Errors
ERROR_SERVICE_DOES_NOT_EXIST(1060)ERROR_SERVICE_START_NAME_INVALID(1058)ERROR_SERVICE_NO_THREAD(1059)
FAQ
Q: What does the ERROR_INVALID_RUNLEVEL_SETTING error mean?
A: This error indicates that a service's run level setting is invalid, specifically, it cannot be higher than the run levels of its dependent services.
Q: How can I resolve this issue?
A: Ensure that all services have appropriate and consistent run levels. The run level of a dependent service must not be lower than the run level of its parent service.
Summary
The ERROR_INVALID_RUNLEVEL_SETTING error code is generated when a Windows service's run level setting is invalid, meaning it cannot exceed the run levels of its dependent services. Developers should ensure that all services are configured with appropriate and consistent run levels to avoid this issue.