ERROR_SERVICES_FAILED_AUTOSTART - 15405 (0x3C2D)
One or more services failed to start during the service startup phase of a run level switch.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_SERVICES_FAILED_AUTOSTART error code, with the numeric value of 15405 and the hexadecimal representation of 0x3C2D, indicates that one or more services failed to start during the service startup phase when a run level switch occurs. A run level switch typically refers to changes in system state, such as booting into a different operating mode.
Error Details
This error is specific to the Windows operating system and pertains to the behavior of services managed by the Service Control Manager (SCM). The SCM manages the lifecycle of services on a Windows system. When a run level switch occurs, the SCM attempts to start all dependent services in a predefined order. If any service fails to start during this phase, the error ERROR_SERVICES_FAILED_AUTOSTART is generated.
Usage Context
This error can occur under various circumstances where a run level switch takes place, such as system boot-up or shutdown, or when the operating system transitions between different operational states. It is important for developers and administrators to understand this error in order to diagnose and resolve issues related to service startup failures.
Developer Interpretation
When encountering ERROR_SERVICES_FAILED_AUTOSTART, it indicates that there was a failure during the service startup process, which could be due to various reasons such as invalid parameters, incorrect service configuration, or resource limitations. Developers should review the specific services involved and their configurations to identify the root cause of the failure.
Related Errors
ERROR_SERVICE_NOT_ACTIVE(1058, 0x42E): Indicates that a service is not active and cannot be started.ERROR_SERVICE_START_HANG(1063, 0x42F): Suggests that the service startup process did not complete within the allotted time.
FAQ
Q: What does ERROR_SERVICES_FAILED_AUTOSTART mean?
A: It indicates that one or more services failed to start during a run level switch. This can occur during system boot-up, shutdown, or state transitions.
Q: How can I troubleshoot this error?
A: Review the specific services involved and their configurations. Ensure that all required dependencies are met and that there are no resource limitations preventing service startup.
Summary
ERROR_SERVICES_FAILED_AUTOSTART is a specific error code indicating failures during the service startup phase of a run level switch in Windows. Understanding this error requires knowledge of the Service Control Manager and the context in which it operates. Developers should focus on reviewing service configurations and ensuring that all necessary resources are available for successful service startup.