ERROR_INVALID_SERVICE_LOCK - 1071 (0x42F)
The specified service database lock is invalid.
Updated: Feb 21, 2026
Technical Background
The ERROR_INVALID_SERVICE_LOCK error, with the numeric code 1071 and hexadecimal representation 0x42F, indicates an issue related to service management in the Windows operating system. This error is specific to operations involving service locks within the Service Control Manager (SCM) subsystem.
Error Details
The ERROR_INVALID_SERVICE_LOCK error signifies that a service database lock has been requested or used in an invalid manner. This can occur when attempting to perform operations on services, such as starting, stopping, or querying their status, while holding an invalid or expired lock.
Common Causes
- Invalid Lock Request: The request for a service lock may have been made with incorrect parameters or in an inappropriate context.
- Expired Lock: A previously acquired lock has become invalid due to system events or operations that invalidated the lock.
- Concurrency Issues: Concurrent access to services by multiple processes or threads, leading to race conditions and lock conflicts.
Real-World Context
This error typically arises in scenarios where a service management operation is performed without proper synchronization with other service management activities. For example, attempting to start a service while another process already holds an invalid lock on the same service can trigger this error.
Is This Error Critical?
The criticality of this error depends on the specific context and the impact on system operations. While it does not necessarily indicate a catastrophic failure, it may disrupt intended service management activities and require corrective action to ensure proper service operation.
How to Diagnose
To diagnose ERROR_INVALID_SERVICE_LOCK, consider the following steps:
- Review Operation Context: Ensure that all service management operations are performed in an appropriate context, with valid locks held where necessary.
- Validate Parameters: Verify that all parameters passed to service management functions are correct and up-to-date.
- Confirm Object Types: Ensure that the object types being managed (services) are correctly identified and handled by the application or script.
How to Resolve
To resolve ERROR_INVALID_SERVICE_LOCK, take the following actions:
- Correct Parameter Usage: Ensure that all parameters used in service management operations are correct and valid.
- Adjust Operation Context: If multiple processes or threads are involved, ensure proper synchronization mechanisms are in place to avoid race conditions.
- Restore Data: In cases where a lock has expired due to system events, restore the necessary data or state to reacquire the lock.
Developer Notes
Developers should be cautious when performing service management operations and ensure that all locks are properly acquired and released. Proper synchronization mechanisms should be implemented to avoid concurrency issues and invalid lock requests.
Related Errors
ERROR_SERVICE_DOES_NOT_EXIST(1060, 0x42C): Indicates that the requested service does not exist.ERROR_ACCESS_DENIED(5, 0x5): May indicate permission issues related to service management operations.ERROR_INVALID_PARAMETER(87, 0x57): Can occur if invalid parameters are passed during service management operations.
FAQ
Q: What does the ERROR_INVALID_SERVICE_LOCK error mean?
A: The ERROR_INVALID_SERVICE_LOCK error indicates that a service database lock has been requested or used in an invalid manner, typically due to incorrect parameters or expired locks.
Q: How can I prevent this error from occurring?
A: Ensure proper synchronization and parameter validation when performing service management operations. Use appropriate locking mechanisms and verify the validity of all locks before proceeding with operations.
Summary
The ERROR_INVALID_SERVICE_LOCK error, 1071 (0x42F), is a specific issue related to service management in Windows. It indicates an invalid lock request or expired lock on a service database. Proper synchronization and parameter validation are crucial to avoid this error and ensure the smooth operation of services.