Event ID 142: The system has rebooted without cleanly shutting down first
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 system has rebooted without cleanly shutting down first.
Event 142
Kernel-Power
System log
Critical
Message and fields (as Event Viewer shows them)
The system has rebooted without cleanly shutting down first. This error is caused because the system stopped responding and the hardware watchdog triggered a system reset.
Soft Restart failed to register with Soft Restart extension.
Event 142
Kernel-Boot
System log
Error
Message and fields (as Event Viewer shows them)
Soft Restart failed to register with Soft Restart extension. The versions are not compatible. Status: …, Vtl: …
The time service has stopped advertising as a time source because the local clock is not synchronized.
Event 142
Time-Service
System log
Warning
Message and fields (as Event Viewer shows them)
The time service has stopped advertising as a time source because the local clock is not synchronized.
Summary of disk space usage, since last event:
Event 142
Ntfs
System log
Information
Message and fields (as Event Viewer shows them)
Summary of disk space usage, since last event:
Available space was between … and …
Change in available space: …
Available clusters were between: … and …
Reserved clusters were between: … and …
Txf abort reserved clusters were between: … and …
Elapsed seconds: …
Pagefile size: …
Volume size: …
Bytes per cluster: …
Slab size: …
Slabs in use: …
Slabs required for volume: …
Thin provisioning map failures: …
Volume guid: …
Volume name: …
Is boot volume: …
Volume is thinly provisioned
Cached runs miss counts:
For MFT: …
For MFT zone: …
Everything else: …