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Event ID 276: Windows boot manager revocation policy version … is applied

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

Windows boot manager revocation policy version … is applied.

Event 276
Kernel-Boot
System log
Information
Message and fields (as Event Viewer shows them) 
Windows boot manager revocation policy version … is applied.

The local system data indicates that a leap second will be … at … UTC (… local time).

Event 276
Time-Service
System log
Warning
Message and fields (as Event Viewer shows them) 
The local system data indicates that a leap second will be … at … UTC (… local time). This information is not corroborated by the current chosen time provider …. W32time service will update the system data to excude this leap second. Please make sure you are synchronizing time from a time source that supports leap seconds and ensure you have applied the latest Windows patches. System Tick Count: ….

For more information, see https://go.microsoft.com/fwlink/?linkid=845961.

Adapter directed power down notification received.

Event 276
StorPort
System log
Information
Message and fields (as Event Viewer shows them) 
Adapter directed power down notification received.