Microsoft-Windows-IsolatedUserMode

Seen on:

  • Windows 10 (1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2)

  • Windows 11 (21H2)

Log source(s): Microsoft-Windows-IsolatedUserMode
Log type: System
Identifier: {73a33ab2-1966-4999-8add-868c41415269}
Event message file(s): %systemroot%\system32\iumbase.dll