ERROR_EVT_FILTER_NOTELTSET - 15015 (0x3AA7)
Can't perform a step operation from a term that does not represent an element set.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_EVT_FILTER_NOTELTSET error code, with the numeric value 15015 and hexadecimal representation 0x3AA7, indicates a specific condition encountered during event log filtering operations. This error suggests that an attempt was made to perform a step operation on a term or filter that does not represent an element set.
Error Details
This error is typically encountered in scenarios where the Windows Event Log system attempts to process a filter expression but finds it invalid because the term used does not correspond to a valid element set. An element set, in this context, refers to a collection of event log records that share certain characteristics or meet specific criteria.
Usage Context
This error can occur when using the Windows Event Log API for filtering events based on various conditions such as source name, event ID, level, and so forth. The term used in the filter expression must be correctly formed to represent a valid element set; otherwise, this error is generated.
Developer Interpretation
Developers should interpret this error code as an indication that the provided filter term does not match any expected structure or pattern required for event log filtering operations. This could mean that the term used in the filter expression is either incorrectly formatted or does not correspond to a valid set of events within the context of the operation.
Related Errors
ERROR_EVT_INVALID_QUERY(15014): Indicates an invalid query was provided.ERROR_EVT_NO_MATCH(15016): No matching events were found based on the filter criteria.
FAQ
Q: What does the ERROR_EVT_FILTER_NOTELTSET error mean?
A: This error indicates that a step operation was attempted on a term that does not represent an element set in event log filtering operations.
Q: How can I resolve this issue?
A: Ensure that the filter terms used are correctly formatted and correspond to valid sets of events. Review the syntax and structure of your filter expressions to ensure they meet the requirements for the operation being performed.
Summary
The ERROR_EVT_FILTER_NOTELTSET error code is a specific technical indicator encountered during event log filtering operations, signaling that an invalid term was used in the filter expression. Developers should focus on validating their filter terms and ensuring they correctly represent valid element sets to avoid this error.