ERROR_RUNLEVEL_SWITCH_TIMEOUT - 15402 (0x3C2A)
The requested run level switch cannot be completed successfully since one or more services will not stop or restart within the specified timeout.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_RUNLEVEL_SWITCH_TIMEOUT (15402, 0x3C2A) indicates that a requested run level switch operation could not be completed successfully. This typically occurs when the system is attempting to change its operational state but encounters services that fail to stop or restart within an allocated time frame.
Error Details
This error arises during processes such as switching between different operating modes, which can include changes in security contexts or operational states. The core issue lies with one or more services failing to comply with the expected behavior within a predefined timeout period. This failure prevents the system from proceeding with the intended run level change.
Usage Context
This error is relevant in scenarios where the Windows operating system needs to transition between different operational modes, such as during shutdown, reboot, or changes in security levels. It can also occur when attempting to perform administrative tasks that require a specific run level.
Developer Interpretation
Developers should interpret this error code as an indication of a failure in service management processes. Specifically, it suggests that services are not responding as expected during the transition period, which could be due to various factors such as misconfigured dependencies or resource constraints. Developers may need to investigate and address these issues to ensure smooth operation.
Related Errors
ERROR_SERVICE_DOES_NOT_EXIST(1063)ERROR_SERVICE_START_HANG(1052)ERROR_SERVICE_MARKED_FOR_DELETE(1074)
FAQ
Q: What does the 'Runlevel Switch Timeout' error mean?
A: It indicates that a service failed to stop or restart within the specified timeout period during an operational state change.
Q: How can I troubleshoot this issue?
A: Review the services involved in the transition and ensure they are properly configured. Check for any dependencies or resource constraints that might be causing delays.
Summary
The ERROR_RUNLEVEL_SWITCH_TIMEOUT error is a specific technical indicator of service management failures during run level transitions. Developers should focus on ensuring proper service configuration and addressing any potential resource constraints to prevent this issue from occurring.