Microsoft-Windows-Diagnosis-Scheduled

Event	Title	Channel	Sample	Rule
1	The scheduled diagnostic task has detected a change in state for a check …	Operational	N	N
2	Scheduled diagnostics have started.	Operational	Y	N
3	Scheduled diagnostics have been completed.	Operational	Y	N
4	Scheduled diagnostics have been disabled.	Operational	N	N
5	The scheduled diagnostic task has started initializing a diagnostic package.	Operational	Y	N
6	The scheduled diagnostic task has completed initialization of a diagnostic …	Operational	Y	N
7	The scheduled diagnostic task has started troubleshooting a diagnostic package.	Operational	Y	N
8	The scheduled diagnostic task has completed troubleshooting a diagnostic …	Operational	Y	N
9	The scheduled diagnostic task has detected a root cause.	Operational	Y	N
10	The scheduled diagnostic task has started resolving a detected root cause.	Operational	Y	N
11	The scheduled diagnostic task has completed resolving a detected root cause.	Operational	Y	N
12	The scheduled diagnostic task has started verifying the fix applied for a …	Operational	Y	N
13	The scheduled diagnostic task has determined that the root cause no longer …	Operational	Y	N
14	The scheduled diagnostic task has determined that the root cause continues to …	Operational	Y	N
15	The scheduled diagnostic task has encountered an error.	Operational	N	N
96	TEST: One or more rootcauses were detected and a package wide notification was …	Operational	N	N
97	TEST: No rootcauses were detected and a package wide reset notification was …	Operational	N	N
98	TEST: A rootcause was detected and a rootcause wide notification was raised.	Operational	N	N
99	TEST: A root cause does not exist and a root cause reset notification was …	Operational	N	N
100	System maintenance detected issues requiring your attention.	Operational	Y	N

Event ID 1: The scheduled diagnostic task has detected a change in state for a check registered in Security and Maintenance.

Channel: Operational

Event ID 2: Scheduled diagnostics have started.

Channel: Operational
Level: Informational

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 2,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372002495037440,
    "time_created": "2026-06-13T05:39:32.0352489+00:00",
    "event_record_id": 22,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 4340
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {},
  "message": "Scheduled diagnostics have started."
}

Event ID 3: Scheduled diagnostics have been completed.

Channel: Operational
Level: Informational

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 3,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372002495037440,
    "time_created": "2026-06-13T05:39:36.5298759+00:00",
    "event_record_id": 28,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 5084
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {},
  "message": "Scheduled diagnostics have been completed."
}

Event ID 4: Scheduled diagnostics have been disabled.

Channel: Operational

Event ID 5: The scheduled diagnostic task has started initializing a diagnostic package.

Channel: Operational
Level: Informational

Fields #

Name	Description
`PackagePath` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 5,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372002495037440,
    "time_created": "2026-06-13T05:39:32.0385046+00:00",
    "event_record_id": 23,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 5084
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {
    "PackagePath": "C:\\Windows\\diagnostics\\scheduled\\Maintenance"
  },
  "message": "The scheduled diagnostic task has started initializing a diagnostic package."
}

Event ID 6: The scheduled diagnostic task has completed initialization of a diagnostic package.

Channel: Operational
Level: Informational

Fields #

Name	Description
`PackageID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 6,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372002495037440,
    "time_created": "2026-06-13T05:39:32.6595304+00:00",
    "event_record_id": 24,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 5084
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {
    "PackageID": "MaintenanceDiagnostic"
  },
  "message": "The scheduled diagnostic task has completed initialization of a diagnostic package."
}

Event ID 7: The scheduled diagnostic task has started troubleshooting a diagnostic package.

Channel: Operational
Level: Informational

Fields #

Name	Description
`PackageID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 7,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372002495037440,
    "time_created": "2026-06-13T05:39:32.6595322+00:00",
    "event_record_id": 25,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 5084
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {
    "PackageID": "MaintenanceDiagnostic"
  },
  "message": "The scheduled diagnostic task has started troubleshooting a diagnostic package."
}

Event ID 8: The scheduled diagnostic task has completed troubleshooting a diagnostic package.

Channel: Operational
Level: Informational

Fields #

Name	Description
`PackageID` UnicodeString
`RootCauseCount` Int32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 8,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372002495037440,
    "time_created": "2026-06-13T05:39:36.5128341+00:00",
    "event_record_id": 26,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 5084
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {
    "PackageID": "MaintenanceDiagnostic",
    "RootCauseCount": "2"
  },
  "message": "The scheduled diagnostic task has completed troubleshooting a diagnostic package."
}

Event ID 9: The scheduled diagnostic task has detected a root cause.

Channel: Operational

Fields #

Name	Description
`RootCauseID` UnicodeString
`RootCauseName` UnicodeString
`RootCauseDescription` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "event_id": 9,
    "level": "Information",
    "task": null,
    "opcode": "Info",
    "time_created": "2026-04-20T21:20:41.5898747+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational"
  },
  "event_data": {
    "RootCauseID": "RC_DiagnosticHistory/DefaultInstanceId",
    "RootCauseName": "Troubleshooting history is taking up disk space",
    "RootCauseDescription": "Troubleshooting history and logs are currently taking up %UnwantedSpace%MB of disk space."
  }
}

Event ID 10: The scheduled diagnostic task has started resolving a detected root cause.

Channel: Operational

Fields #

Name	Description
`RootCauseID` UnicodeString
`ResolutionID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "event_id": 10,
    "level": "Information",
    "task": null,
    "opcode": "Info",
    "time_created": "2026-04-20T21:20:41.8700060+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational"
  },
  "event_data": {
    "ResolutionID": "RC_DiagnosticHistory/DefaultInstanceId/RS_AdminDiagnosticHistory",
    "RootCauseID": "RC_DiagnosticHistory/DefaultInstanceId"
  }
}

Event ID 11: The scheduled diagnostic task has completed resolving a detected root cause.

Channel: Operational

Fields #

Name	Description
`RootCauseID` UnicodeString
`ResolutionID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "event_id": 11,
    "level": "Information",
    "task": null,
    "opcode": "Info",
    "time_created": "2026-04-20T21:20:42.0122980+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational"
  },
  "event_data": {
    "ResolutionID": "RC_DiagnosticHistory/DefaultInstanceId/RS_AdminDiagnosticHistory",
    "RootCauseID": "RC_DiagnosticHistory/DefaultInstanceId"
  }
}

Event ID 12: The scheduled diagnostic task has started verifying the fix applied for a detected root cause.

Channel: Operational

Fields #

Name	Description
`RootCauseID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "event_id": 12,
    "level": "Information",
    "task": null,
    "opcode": "Info",
    "time_created": "2026-04-20T21:20:42.0122993+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational"
  },
  "event_data": {
    "RootCauseID": "RC_DiagnosticHistory/DefaultInstanceId"
  }
}

Event ID 13: The scheduled diagnostic task has determined that the root cause no longer exists.

Channel: Operational

Fields #

Name	Description
`RootCauseID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "event_id": 13,
    "level": "Information",
    "task": null,
    "opcode": "Info",
    "time_created": "2026-04-20T21:20:42.0908167+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational"
  },
  "event_data": {
    "RootCauseID": "RC_DiagnosticHistory/DefaultInstanceId"
  }
}

Event ID 14: The scheduled diagnostic task has determined that the root cause continues to exist.

Channel: Operational

Fields #

Name	Description
`RootCauseID` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "event_id": 14,
    "level": "Information",
    "task": null,
    "opcode": "Info",
    "time_created": "2026-04-20T21:20:41.8699918+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational"
  },
  "event_data": {
    "RootCauseID": "RC_DiagnosticHistory/DefaultInstanceId"
  }
}

Event ID 15: The scheduled diagnostic task has encountered an error.

Channel: Operational

Fields #

Name	Description
`PackageID` UnicodeString
`ErrorCode` UInt32

Event ID 96: TEST: One or more rootcauses were detected and a package wide notification was raised.

Channel: Operational

Fields #

Name	Description
`hc_stateid` UInt32
`Data1` UnicodeString
`Data2` UnicodeString

Event ID 97: TEST: No rootcauses were detected and a package wide reset notification was raised.

Channel: Operational

Fields #

Name	Description
`hc_stateid` UInt32

Event ID 98: TEST: A rootcause was detected and a rootcause wide notification was raised.

Channel: Operational

Fields #

Name	Description
`hc_stateid` UInt32
`Data1` UnicodeString
`Data2` UnicodeString

Event ID 99: TEST: A root cause does not exist and a root cause reset notification was raised.

Channel: Operational

Fields #

Name	Description
`hc_stateid` UInt32

Event ID 100: System maintenance detected issues requiring your attention.

Channel: Operational
Level: Critical

Description

System maintenance detected issues requiring your attention. A notification was sent to Security and Maintenance.

Message #

System maintenance detected issues requiring your attention. A notification was sent to Security and Maintenance.

Fields #

Name	Description
`hc_stateid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-Scheduled",
    "guid": "{40AB57C2-1C53-4DF9-9324-FF7CF898A02C}",
    "event_source_name": "",
    "event_id": 100,
    "version": 0,
    "level": 1,
    "task": 0,
    "opcode": 0,
    "keywords": -9223372019674906624,
    "time_created": "2026-06-13T05:39:36.5128381+00:00",
    "event_record_id": 27,
    "correlation": {},
    "execution": {
      "process_id": 5480,
      "thread_id": 5084
    },
    "channel": "Microsoft-Windows-Diagnosis-Scheduled/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-21-1006758700-2167138679-1475694448-1105"
    }
  },
  "event_data": {
    "hc_stateid": "0"
  },
  "message": "System maintenance detected issues requiring your attention. A notification was sent to Security and Maintenance."
}

Provenance

ETW provider GUID 40ab57c2-1c53-4df9-9324-ff7cf898a02c

Defined in sdiagschd.dll, which carries the event manifest.

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02 — Manifest XML pack, 2.0 MB