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Event ID 1: The system time has changed to … from

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

The system time has changed to … from

Event 1
Kernel-General
System log
Information
Message and fields (as Event Viewer shows them) 
The system time has changed to … from ….
Time Delta: … ms

Change Reason: ….
Process: '…' (PID …).

RTC time: …
Current time zone bias: …
RTC time is in UTC: …
System time was based on RTC time: …

System was booted in …x…@…bpp.

Event 1
Kernel-Boot
System log
Information
Message and fields (as Event Viewer shows them) 
System was booted in …x…@…bpp.

Authentication started.

Event 1
Winlogon
System log
Information
Message and fields (as Event Viewer shows them) 
Authentication started.

The time provider '…' logged the following error

Event 1
Time-Service
System log
Error
Message and fields (as Event Viewer shows them) 
The time provider '…' logged the following error: …

RundownStart

Event 1
Ntfs
System log
Information
Message and fields (as Event Viewer shows them) 
RundownStart

Logical Unit reset

Event 1
StorPort
System log
Error
Message and fields (as Event Viewer shows them) 
Logical Unit reset

GroupOperationId = …; OperationId = …; Operation = …; ClientMachine = …; User = …; ClientProcessId = …; NamespaceName

Event 1
WMI-Activity
WMI-Activity/Operational log
Information
Message and fields (as Event Viewer shows them) 
GroupOperationId = …; OperationId = …; Operation = …; ClientMachine = …; User = …; ClientProcessId = …; NamespaceName = …

SMB2 Request Negotiate

Event 1
SMBServer
SMBServer/Operational log
Information
Message and fields (as Event Viewer shows them) 
SMB2 Request Negotiate

BITS job "…" with ID … has been resumed.

Event 1
Bits-Client
Bits-Client/Operational log
Information
Message and fields (as Event Viewer shows them) 
BITS job "…" with ID … has been resumed.

Automatic certificate enrollment for … failed to download certificates for … store from

Event 1
CertificateServicesClient-AutoEnrollment
Application log
Information
Message and fields (as Event Viewer shows them) 
Automatic certificate enrollment for … failed to download certificates for … store from … (…). …