Event ID 13: The operating system is shutting down at system time
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.
The operating system is shutting down at system time
Event 13
Kernel-General
System log
Information
Element … of application … was not in policy.
Event 13
Kernel-Boot
System log
Warning
Time Provider NtpClient: This machine is configured to use the domain hierarchy to determine its time source, but the computer is joined to a Windows NT 4.0 domain.
Event 13
Time-Service
System log
Warning
NTFS KSR data filled successfully.
Event 13
Ntfs
System log
Information
Miniport IO Request Service Time
Event 13
StorPort
System log
Information
The smart card PIN stored in Credential Manager is missing or invalid.
Event 13
Security-Kerberos
System log
Information
Stop OperationId = …; ResultCode
Event 13
WMI-Activity
WMI-Activity/Operational log
Information
SMB2 Request Break Oplock
Event 13
SMBServer
SMBServer/Operational log
Information
BITS started listening for peer-server announcements.
Event 13
Bits-Client
Bits-Client/Operational log
Information