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Event ID 1018: The dump file at location: … was deleted because the disk volume had less than … GB free space

Windows Event ID Lookup: What Windows event IDs mean: 4625, 4624, 4740, 6008, 41, 7045, 1102 and 3,000 more, with Windows' own message text, the fields and what to check.

Look up a Windows event ID from Event Viewer, a SIEM alert or a log export: what it means, the fields it records, and what to check. Many IDs are used by more than one source (event 41 is both a Kernel-Power crash and a boot error), so every definition is shown, the one people usually mean first. The message text is Windows' own, read from the event providers of Windows 10.0.26200.0, 2026-10-28; the notes are ours, based on Microsoft's security auditing reference.

Try: 4625, 4624, 4740, 6008, 41, 1074, 7045, 1102, 4104, 1149

The dump file at location: … was deleted because the disk volume had less than … GB free space.

Event 1018
WER-SystemErrorReporting
System log
Information
Message and fields (as Event Viewer shows them) 
The dump file at location: … was deleted because the disk volume had less than … GB free space.

The response for the query … was a Link Local IP address

Event 1018
DNS-Client
System log
Information
Message and fields (as Event Viewer shows them) 
The response for the query … was a Link Local IP address …. The response was sent by the server at …. Client PID …. Send Blob …. Context …

Backchannel invalidation of session completed.

Event 1018
SMBServer
SMBServer/Operational log
Information
Message and fields (as Event Viewer shows them) 
Backchannel invalidation of session completed.

Session ID: …
Status: … (…)
Task Status: … (…)

Guidance:

You should expect this event on a computer that is continuously available. No user action is required