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Event ID 150: The time sample was rejected because: Round-trip delay too large

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 time sample was rejected because: Round-trip delay too large.

Event 150
Time-Service
System log
Information
Message and fields (as Event Viewer shows them)
The time sample was rejected because: Round-trip delay too large.

An IO failed with … and NTFS has relocated the clusters.

Event 150
Ntfs
System log
Warning
Message and fields (as Event Viewer shows them)
An IO failed with … and NTFS has relocated the clusters. The original clusters are now marked as bad and they will not be reused.
This may indicate a failing disk.

           Process Id: …
           Process name: …
           File name: …
           File offset: …
           … cluster(s) were marked as bad starting at cluster …

           Volume guid: …
           Volume name: …
           Is boot volume: …

Task Scheduler failed to subscribe for the event trigger for task "…".

Event 150
TaskScheduler
TaskScheduler/Operational log
Error
Message and fields (as Event Viewer shows them)
Task Scheduler failed to subscribe for the event trigger for task "…". Additional Data: Error Value: ….