Event ID 9001: This machine is configured to retrieve Group Policy files from a file share in an insecure way

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

This machine is configured to retrieve Group Policy files from a file share in an insecure way.

Event 9001

GroupPolicy

System log

Warning

Message and fields (as Event Viewer shows them)

This machine is configured to retrieve Group Policy files from a file share in an insecure way.

UNC Path: …
Mutual Authentication Enforced: …
Integrity Enforced: …

Guidance: The UNC path contains logon scripts and/or files that control system security policies. Microsoft recommends configuring Windows to require both mutual authentication and integrity when accessing files on this UNC path.

For details on configuring Windows machines to require additional security when accessing specific UNC paths, visit http://support.microsoft.com/kb/3000483.