Event ID 100 — DSM service started, mode is Prop_CoreServiceMode, last session (or boot) was Prop_Event_Window_Seconds seconds ago.

{
  "system": {
    "provider": "Microsoft-Windows-DeviceSetupManager",
    "guid": "FCBB06BB-6A2A-46E3-ABAA-246CB4E508B2",
    "event_source_name": "",
    "event_id": 100,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": 4611686018427387904,
    "time_created": "2023-11-06T06:25:40.195484+00:00",
    "event_record_id": 71,
    "correlation": {},
    "execution": {
      "process_id": 1856,
      "thread_id": 2020
    },
    "channel": "Microsoft-Windows-DeviceSetupManager/Admin",
    "computer": "WinDev2310Eval",
    "security": {
      "user_id": "S-1-5-18"
    }
  },
  "event_data": {
    "Prop_CoreServiceMode": 3,
    "Prop_Event_Window_Seconds": 0
  },
  "message": ""
}