ERROR_NO_USER_SESSION_KEY - 1394 (0x572)
There is no user session key for the specified logon session.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_NO_USER_SESSION_KEY (1394, 0x572) is returned when a user session key cannot be found for the specified logon session. This typically indicates an issue with authentication or session management.
Error Details
This error suggests that the system was unable to locate the necessary session-specific credentials required to access certain resources or perform operations within the context of a particular user session. The absence of a user session key can be due to various reasons, such as an invalid logon session identifier or issues with the security context.
Usage Context
This error is commonly encountered in scenarios where applications or services attempt to interact with system resources that require specific user session keys for authentication purposes. It may also appear when dealing with APIs related to user sessions and security contexts within the Windows operating environment.
Developer Interpretation
When encountering ERROR_NO_USER_SESSION_KEY, developers should consider several aspects:
- Verify the logon session identifier provided is valid and corresponds to an active session.
- Ensure that the application or service has the necessary permissions to access the required resources.
- Check for any issues with the security context, such as expired tokens or incorrect authentication mechanisms.
Related Errors
ERROR_INVALID_PARAMETER(1402, 0x57A)ERROR_LOGON_FAILURE(1326, 0x532)ERROR_ACCESS_DENIED(5, 0x5)
FAQ
Q: What does the error code ERROR_NO_USER_SESSION_KEY mean?
A: It indicates that there is no user session key for the specified logon session.
Q: How can I resolve this issue?
A: Ensure that the logon session identifier is correct and verify the security context of your application or service.
Summary
ERROR_NO_USER_SESSION_KEY (1394, 0x572) is a specific error code indicating an issue with user session keys in Windows. Developers should focus on validating session identifiers and ensuring proper authentication mechanisms are in place to avoid this error.