Microsoft-Windows-Kernel-IO

14 events across 2 channels

Event	Title	Channel	Sample
1	Windows has started processing the volume mount request.	Operational	Y
2	The volume has been successfully mounted.	Operational	Y
3	Windows failed to mount the volume.	Operational	Y
1205	Windows is configured to block legacy file system filters.	System	N
1206	Legacy file system filters cannot attach to byte addressable volumes.	System	N
1207	Dumps are disabled on the machine since there was an error enabling dump …	System	N
1212	Failed to automatically attach a VHD during system startup.	System	N
1213	This volume is configured to block legacy file system filters.	System	N
1300	LoadBootHotPatchesStart	Operational	N
1301	LoadBootHotPatchesStop	Operational	N
1302	WheaInitializeStart	Operational	N
1303	WheaInitializeStop	Operational	N
1304	CrashDumpInitializeStart	Operational	N
1305	CrashDumpInitializeStop	Operational	N

Event ID 1: Windows has started processing the volume mount request.

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Also via: realtime ETW trace
Level: Informational
Task: VolumeMount
Opcode: Start

Description

Windows has started processing the volume mount request.

Message #

Windows has started processing the volume mount request.

           Volume GUID: %1
           Volume Name: %3

Fields #

Name	Description
`VolumeGuid` GUID
`VolumeNameLength` UInt16
`VolumeName` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-IO",
    "guid": "{ABF1F586-2E50-4BA8-928D-49044E6F0DB7}",
    "event_source_name": "",
    "event_id": 1,
    "version": 0,
    "level": 4,
    "task": 1,
    "opcode": 1,
    "keywords": -9223372036854775807,
    "time_created": "2026-06-13T14:12:00.0150855+00:00",
    "event_record_id": 9917,
    "correlation": {},
    "execution": {
      "process_id": 6740,
      "thread_id": 4324
    },
    "channel": "Microsoft-Windows-Kernel-IO/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-19"
    }
  },
  "event_data": {
    "VolumeGuid": "{4b41a8d4-e67f-11f0-964b-806e6f6e6963}",
    "VolumeNameLength": "2",
    "VolumeName": "D:"
  },
  "message": "Windows has started processing the volume mount request.\r\n\r\n           Volume GUID: {4b41a8d4-e67f-11f0-964b-806e6f6e6963}\r\n           Volume Name: D:\r\n"
}

Event ID 2: The volume has been successfully mounted.

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Level: Informational
Task: VolumeMount
Opcode: Stop

Description

The volume has been successfully mounted.

Message #

The volume has been successfully mounted.

           Volume GUID: %1
           Volume Name: %3

Fields #

Name	Description
`VolumeGuid` GUID
`VolumeNameLength` UInt16
`VolumeName` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-IO",
    "guid": "{ABF1F586-2E50-4BA8-928D-49044E6F0DB7}",
    "event_source_name": "",
    "event_id": 2,
    "version": 0,
    "level": 4,
    "task": 1,
    "opcode": 2,
    "keywords": -9223372036854775807,
    "time_created": "2026-06-13T10:41:37.8437748+00:00",
    "event_record_id": 9412,
    "correlation": {},
    "execution": {
      "process_id": 5200,
      "thread_id": 8140
    },
    "channel": "Microsoft-Windows-Kernel-IO/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-18"
    }
  },
  "event_data": {
    "VolumeGuid": "{00000000-0000-0000-0000-000000000000}",
    "VolumeNameLength": "0",
    "VolumeName": ""
  },
  "message": "The volume has been successfully mounted.\r\n\r\n           Volume GUID: {00000000-0000-0000-0000-000000000000}\r\n           Volume Name: \r\n"
}

Event ID 3: Windows failed to mount the volume.

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Also via: realtime ETW trace
Level: Warning
Task: VolumeMount
Opcode: Stop

Description

Windows failed to mount the volume.

Message #

Windows failed to mount the volume.

           Status: %4
           Volume GUID: %1
           Volume Name: %3

Fields #

Name	Description
`VolumeGuid` GUID
`VolumeNameLength` UInt16
`VolumeName` UnicodeString
`Error` HexInt32	Status.

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-IO",
    "guid": "{ABF1F586-2E50-4BA8-928D-49044E6F0DB7}",
    "event_source_name": "",
    "event_id": 3,
    "version": 0,
    "level": 3,
    "task": 1,
    "opcode": 2,
    "keywords": -9223372036854775807,
    "time_created": "2026-06-13T14:12:00.0158348+00:00",
    "event_record_id": 9918,
    "correlation": {},
    "execution": {
      "process_id": 6740,
      "thread_id": 4324
    },
    "channel": "Microsoft-Windows-Kernel-IO/Operational",
    "computer": "telemetry-DC-a.cell-a.ludus.domain",
    "security": {
      "user_id": "S-1-5-19"
    }
  },
  "event_data": {
    "VolumeGuid": "{4b41a8d4-e67f-11f0-964b-806e6f6e6963}",
    "VolumeNameLength": "2",
    "VolumeName": "D:",
    "Error": "0xc0000013"
  },
  "message": "Windows failed to mount the volume.\r\n\r\n           Status: {No Disk}\r\nThere is no disk in the drive.\r\nPlease insert a disk into drive %hs.\r\n           Volume GUID: {4b41a8d4-e67f-11f0-964b-806e6f6e6963}\r\n           Volume Name: D:\r\n"
}

Event ID 1205: Windows is configured to block legacy file system filters.

Provider: Microsoft-Windows-Kernel-IO
Channel: System
Opcode: Info

Description

Windows is configured to block legacy file system filters.

Message #

Windows is configured to block legacy file system filters.

           Filter name: %2

Fields #

Name	Description
`FilterNameLength` UInt16
`FilterName` UnicodeString

Event ID 1206: Legacy file system filters cannot attach to byte addressable volumes.

Provider: Microsoft-Windows-Kernel-IO
Channel: System
Opcode: Info

Description

Legacy file system filters cannot attach to byte addressable volumes.

Message #

Legacy file system filters cannot attach to byte addressable volumes.

           Filter name: %2
           Volume name: %4

Fields #

Name	Description
`FilterNameLength` UInt16
`FilterName` UnicodeString
`VolumeNameLength` UInt16
`VolumeName` UnicodeString

Event ID 1207: Dumps are disabled on the machine since there was an error enabling dump encryption: DumpEncryptionFailureReason.

Provider: Microsoft-Windows-Kernel-IO
Channel: System
Opcode: Info

Description

Dumps are disabled on the machine since there was an error enabling dump encryption: DumpEncryptionFailureReason.

Message #

Dumps are disabled on the machine since there was an error enabling dump encryption: %1.                  
See http://go.microsoft.com/fwlink/?LinkId=824149 for more information on dump encryption

Fields #

Name	Description
`DumpEncryptionFailureReason` UInt32

Event ID 1212: Failed to automatically attach a VHD during system startup.

Provider: Microsoft-Windows-Kernel-IO
Channel: System

Description

Failed to automatically attach a VHD during system startup.

Message #

Failed to automatically attach a VHD during system startup.

          VHD name: %2
          Status: %3

Fields #

Name	Description
`NameLength` UInt16
`Name` UnicodeString
`Status` HexInt32	NTSTATUS reference

Event ID 1213: This volume is configured to block legacy file system filters.

Provider: Microsoft-Windows-Kernel-IO
Channel: System

Description

This volume is configured to block legacy file system filters.

Message #

This volume is configured to block legacy file system filters.

           Filter name: %2
           Volume name: %4

Fields #

Name	Description
`FilterNameLength` UInt16
`FilterName` UnicodeString
`VolumeNameLength` UInt16
`VolumeName` UnicodeString

Event ID 1300: LoadBootHotPatchesStart

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Task: LoadBootHotPatches
Opcode: Start

Event ID 1301: LoadBootHotPatchesStop

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Task: LoadBootHotPatches
Opcode: Stop

Event ID 1302: WheaInitializeStart

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Task: WheaInitialize
Opcode: Start

Fields #

Name	Description
`Phase` UInt32

Event ID 1303: WheaInitializeStop

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Task: WheaInitialize
Opcode: Stop

Event ID 1304: CrashDumpInitializeStart

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Task: CrashDumpInitialize
Opcode: Start

Event ID 1305: CrashDumpInitializeStop

Provider: Microsoft-Windows-Kernel-IO
Channel: Operational
Task: CrashDumpInitialize
Opcode: Stop

Fields #

Name	Description
`Status` UInt32	NTSTATUS reference

Provenance

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

ETW provider GUID {ABF1F586-2E50-4BA8-928D-49044E6F0DB7}

Defined in Microsoft-Windows-System-Events.dll, which carries the event manifest.

Observed on:

WS2022-20348.4893, sample captured from a live trace, binary version 10.0.20348.3932, captured 2026-06-02
WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.3932, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.5074, captured 2026-06-02

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)

Microsoft-Windows-Kernel-IO

Event ID 1: Windows has started processing the volume mount request.

Description

Message #

Fields #

Example Event #

Event ID 2: The volume has been successfully mounted.

Description

Message #

Fields #

Example Event #

Event ID 3: Windows failed to mount the volume.

Description

Message #

Fields #

Example Event #

Event ID 1205: Windows is configured to block legacy file system filters.

Description

Message #

Fields #

Event ID 1206: Legacy file system filters cannot attach to byte addressable volumes.

Description

Message #

Fields #

Event ID 1207: Dumps are disabled on the machine since there was an error enabling dump encryption: DumpEncryptionFailureReason.

Description

Message #

Fields #

Event ID 1212: Failed to automatically attach a VHD during system startup.

Description

Message #

Fields #

Event ID 1213: This volume is configured to block legacy file system filters.

Description

Message #

Fields #

Event ID 1300: LoadBootHotPatchesStart

Event ID 1301: LoadBootHotPatchesStop

Event ID 1302: WheaInitializeStart

Fields #

Event ID 1303: WheaInitializeStop

Event ID 1304: CrashDumpInitializeStart

Event ID 1305: CrashDumpInitializeStop

Fields #

Provenance

Downloads