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Event ID 1007: Error reporting was unable to report the bugcheck

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 report the bugcheck.

Event 1007
WER-SystemErrorReporting
System log
Information
Message and fields (as Event Viewer shows them) 
Error reporting was unable to report the bugcheck.

The primary DNS suffix for this machine is missing.

Event 1007
DNS-Client
System log
Error
Message and fields (as Event Viewer shows them) 
The primary DNS suffix for this machine is missing. In the absence of a primary DNS suffix, short unqualified names may not resolve through DNS

Diagnostic miniport error event on device(Port

Event 1007
StorPort
System log
Error
Message and fields (as Event Viewer shows them) 
Diagnostic miniport error event on device(Port = …).                    
Adapter Guid: …                    
Miniport driver name: …                    
SubsystemId: …                    
ControllerId: …                    
NamespaceId: …                    
TransportType: …                    
TransportAddress: …                    
ProductId: …                    
Firmware revision: …                    
MiniportEventId: …                    
Description: …

The processing of Group Policy failed.

Event 1007
GroupPolicy
System log
Error
Message and fields (as Event Viewer shows them) 
The processing of Group Policy failed. Windows could not determine the site associated for this computer, which is required for Group Policy processing.

The Windows Resource Exhaustion Detector experienced a memory allocation failure.

Event 1007
Resource-Exhaustion-Detector
System log
Error
Message and fields (as Event Viewer shows them) 
The Windows Resource Exhaustion Detector experienced a memory allocation failure.

… has detected malware or potentially unwanted software using Defender security intelligence and applied the remediation action defined in the security settings.

Event 1007
Windows Defender
Windows Defender/Operational log
Information
Message and fields (as Event Viewer shows them) 
… has detected malware or potentially unwanted software using Defender security intelligence and applied the remediation action defined in the security settings.
 For more information please see the following:
…
 	User: …\…
 	Name: …
 	ID: …
 	Severity: …
 	Category: …
 	Action: …
 	Status: …
 	Security intelligence Version: …
 	Engine Version: …

The share denied anonymous access to the client.

Event 1007
SMBServer
SMBServer/Operational log
Error
Message and fields (as Event Viewer shows them) 
The share denied anonymous access to the client.

Client Name: …
Client Address: …
Share Name: …
Share Path: …

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, anonymous access to shares is denied.

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