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Event ID 2073: A rule has been modified in the Windows Defender Firewall exception list

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

A rule has been modified in the Windows Defender Firewall exception list.

Event 2073
Windows Firewall With Advanced Security
Windows Firewall With Advanced Security/Firewall log
Information
Message and fields (as Event Viewer shows them) 
A rule has been modified in the Windows Defender Firewall exception list.

Modified Rule:
	Rule ID:	…
	Rule Name:	…
	Origin:	…
	Active:	…
	Direction:	…
	Profiles:	…
	Action:	…
	Application Path:	…
	Service Name:	…
	Protocol:	…
	Security Options:	…
	Edge Traversal:	…
	Modifying User:	…
	Modifying Application:	…
	Error Code:	…