Event ID 154: Boot Policy Migration used an authenticated variable
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.
Boot Policy Migration used an authenticated variable.
Event 154
Kernel-Boot
System log
Information
The time sample was rejected because: Packet contains unreasonable root delay or root dispersion values.
Event 154
Time-Service
System log
Information
System file pages are now locked into memory.
Event 154
Ntfs
System log
Information
The IO operation at logical block address … for Disk … (PDO name: …) failed due to a hardware error.
Event 154
disk
System log