## Microsoft-Windows-PerfOS Seen on: * Windows Vista * Windows 2008 * Windows 7 * Windows 2012 * Windows 8.0 * Windows 8.1 * Windows 10 (1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2) * Windows 2016 * Windows 2019 * Windows 11 (21H2)
Name: Microsoft-Windows-PerfOS
Identifier: {f82fb576-e941-4956-a2c7-a0cf83f6450a}
Log type(s): Application
Log source(s): Microsoft-Windows-PerfOS
  PerfOs
Event message file(s): %SystemRoot%\system32\perfos.dll