ERROR_LOG_POLICY_ALREADY_INSTALLED - 6619 (0x19DB)
Log policy could not be installed because a policy of the same type is already present.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_LOG_POLICY_ALREADY_INSTALLED error code (6619, 0x19DB) indicates that an attempt to install a log policy has failed because a policy of the same type is already installed on the system.
Error Details
This error typically occurs when attempting to configure or modify event log policies using the Windows API functions such as SetLogEventMask or SetLogRecordSize. The system checks for existing policies before applying new ones, and if a policy of the same type is found, this error is returned.
Usage Context
This error can be encountered in various scenarios where event log configurations are being managed programmatically. It may also appear when using tools or scripts that interact with the Windows Event Log service to set up logging policies.
Developer Interpretation
When encountering this error, developers should ensure that they are not attempting to install a duplicate policy. The system maintains uniqueness for each type of log policy to prevent conflicts and ensure proper event logging behavior.
Related Errors
ERROR_LOG_POLICY_NOT_INSTALLED(6618, 0x19D2): Indicates that the specified log policy is not installed.ERROR_LOG_POLICY_INVALID(661A, 0x19DA): Indicates that the provided log policy is invalid or corrupted.
FAQ
Q: Can this error be ignored?
A: No, it should be addressed to ensure proper event logging configurations. Ignoring this error could lead to incomplete or incorrect logging behavior.
Q: How can I resolve this issue?
A: Review the existing log policies and ensure that no duplicate policies are being installed. If necessary, remove conflicting policies before attempting to install a new one.
Summary
The ERROR_LOG_POLICY_ALREADY_INSTALLED error code (6619, 0x19DB) is returned when an attempt to install a log policy fails due to the presence of a similar policy. Developers should ensure that their configurations are unique and properly managed to avoid this issue.