Skip to content

Event ID 1009: Error reporting was unable to check the paging file for a crash dump

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

Error reporting was unable to check the paging file for a crash dump.

Event 1009
WER-SystemErrorReporting
System log
Error
Message and fields (as Event Viewer shows them) 
Error reporting was unable to check the paging file for a crash dump.

The primary DNS suffix for this machine (…) does not match the Active Directory domain (…) that it is currently joined to.

Event 1009
DNS-Client
System log
Error
Message and fields (as Event Viewer shows them) 
The primary DNS suffix for this machine (…) does not match the Active Directory domain (…) that it is currently joined to.

Diagnostic miniport informational event on device(Port

Event 1009
StorPort
System log
Information
Message and fields (as Event Viewer shows them) 
Diagnostic miniport informational event on device(Port = …).                    
Adapter Guid: …                    
Miniport driver name: …                    
SubsystemId: …                    
ControllerId: …                    
NamespaceId: …                    
TransportType: …                    
TransportAddress: …                    
ProductId: …                    
Firmware revision: …                    
MiniportEventId: …                    
Description: …

… has restored an item from quarantine.

Event 1009
Windows Defender
Windows Defender/Operational log
Information
Message and fields (as Event Viewer shows them) 
… has restored an item from quarantine.
 For more information please see the following:
…
 	Name: …
 	ID: …
 	Severity: …
 	Category: …
 	User: …\…
 	Security intelligence Version: …
 	Engine Version: …

The server denied anonymous access to the client.

Event 1009
SMBServer
SMBServer/Operational log
Error
Message and fields (as Event Viewer shows them) 
The server denied anonymous access to the client.

Client Name: …
 Client Address: …
Session ID: …

Guidance:

You should expect this error when a client attempts to connect to shares and does not provide any credentials. This indicates that the client is not providing a user name (and domain credentials, if necessary). By default, Windows Server denies anonymous access to shares.

This error does not always indicate a problem with authorization, but mainly authentication. It is more common with non-Windows clients.