Event ID 258 — The storage optimizer successfully completed shrink on (C:)

{
  "system": {
    "provider": "Microsoft-Windows-Defrag",
    "guid": "",
    "event_source_name": "",
    "event_id": 258,
    "version": 0,
    "level": 0,
    "task": 0,
    "opcode": 0,
    "keywords": 36028797018963968,
    "time_created": "2022-04-07T16:45:03.649359+00:00",
    "event_record_id": 5,
    "correlation": {},
    "execution": {
      "process_id": 0,
      "thread_id": 0
    },
    "channel": "Application",
    "computer": "WIN-FPV0DSIC9O6",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Data": [
      "shrink",
      "(C:)"
    ],
    "Binary": "AAAAAC4CAAASAgAAAAAAACI2eWJTO7YXZ+MAAAAAAAAAAAAA"
  },
  "message": "The storage optimizer successfully completed shrink on (C:)"
}