Microsoft-Windows-Diagnosis-PCW

20 events across 3 channels

Event	Title	Channel	Sample
1	Provider ProviderGuid failed to register.	Operational	N
2	Provider ProviderGuid failed to register counter set CounterSetGuid.	Operational	Y
3	Instance (CounterSetGuid, InstanceName, InstanceId) could not be created.	Operational	Y
4	About to call provider ProviderGuid callback with arguments (CallbackReason, …	Analytic	N
5	Callback returned.	Analytic	N
6	Provider ProviderGuid received an invalid notification with size Size.	Debug	N
7	Provider ProviderGuid received notification: RequestCode.	Debug	N
8	Provider ProviderGuid notification handler has replied with size Size and error …	Debug	N
9	Notification returning with status: "Status".	Debug	N
13	Query of provider ProviderGuid with id Id had data collected.	Analytic	N
16	Counter CounterId of instance (CounterSetGuid, InstanceName, InstanceId) could …	Operational	Y
17	Provider ProviderGuid failed to unregister.	Operational	N
18	Instance (CounterSetGuid, InstanceName, InstanceId) could not be closed.	Operational	N
19	Instance (CounterSetGuid, InstanceName, InstanceId) could not be queried.	Operational	N
20	Unable to load pcw.	Operational	N
21	Kernel-mode provider failed to register counter set CounterSetName.	Operational	N
22	Kernel-mode provider failed to create instance InstanceName of counter set …	Operational	N
23	Kernel-mode provider failed to add instance InstanceName of counter set …	Operational	N
24	PCW driver failed when executing ioctl function FunctionIndex.	Analytic	N
25	PCW device missing during registration of counter set CounterSetGuid of provider …	Debug	N

Event ID 1: Provider ProviderGuid failed to register.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Provider ProviderGuid failed to register. Error: "Error".

Message #

Provider %2 failed to register. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`ProviderGuid` GUID

Event ID 2: Provider ProviderGuid failed to register counter set CounterSetGuid.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Provider ProviderGuid failed to register counter set CounterSetGuid. Error: "Error".

Message #

Provider %2 failed to register counter set %3. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`ProviderGuid` GUID
`CounterSetGuid` GUID

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-PCW",
    "event_id": 2,
    "level": 0,
    "task": 0,
    "opcode": 0,
    "time_created": "2026-05-18T04:38:25.8277283+00:00",
    "computer": "JD-DC01-2022.ludus.domain",
    "channel": "Microsoft-Windows-Diagnosis-PCW"
  },
  "event_data": {
    "ProviderGuid": "{1568ac8e-ff96-4107-926f-4499baaf5110}",
    "Error": "5",
    "CounterSetGuid": "{9d7d6cb7-9b25-4bf4-b2c6-c502e401d12d}"
  }
}

Event ID 3: Instance (CounterSetGuid, InstanceName, InstanceId) could not be created.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Instance (CounterSetGuid, InstanceName, InstanceId) could not be created. Error: "Error".

Message #

Instance (%2, %3, %4) could not be created. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`CounterSetGuid` GUID
`InstanceName` UnicodeString
`InstanceId` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-PCW",
    "guid": "AABF8B86-7936-4FA2-ACB0-63127F879DBF",
    "event_source_name": "",
    "event_id": 3,
    "version": 0,
    "level": 0,
    "task": 0,
    "opcode": 0,
    "keywords": 9223372036854777856,
    "time_created": "2026-03-13T20:26:07.358863+00:00",
    "event_record_id": 2245,
    "correlation": {
      "ActivityID": "010930CA-58CC-4D55-AD7E-3768B763C942"
    },
    "execution": {
      "process_id": 1840,
      "thread_id": 4820
    },
    "channel": "Microsoft-Windows-Diagnosis-PCW/Operational",
    "computer": "LAB-WIN11.ludus.domain",
    "security": {
      "user_id": "S-1-5-18"
    }
  },
  "event_data": {
    "Error": 183,
    "CounterSetGuid": "90C3888A-474E-4932-9925-ED1DC6731F36",
    "InstanceName": "D66F4153-89DD-4D11-8753-19E1BF9370ED configuration file",
    "InstanceId": 0
  },
  "message": ""
}

Event ID 4: About to call provider ProviderGuid callback with arguments (CallbackReason, MachineName, MachineNameSize).

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Analytic

Description

About to call provider ProviderGuid callback with arguments (CallbackReason, MachineName, MachineNameSize).

Message #

About to call provider %1 callback with arguments (%2, %3, %4).

Fields #

Name	Description
`ProviderGuid` GUID
`CallbackReason` UInt32
`MachineName` UnicodeString
`MachineNameSize` UInt32

Event ID 5: Callback returned.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Analytic

Description

Callback returned. Return value: "Status".

Message #

Callback returned. Return value: "%1"

Fields #

Name	Description
`Status` UInt32	NTSTATUS reference

Event ID 6: Provider ProviderGuid received an invalid notification with size Size.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Debug

Description

Provider ProviderGuid received an invalid notification with size Size.

Message #

Provider %1 received an invalid notification with size %2.

Fields #

Name	Description
`ProviderGuid` GUID
`Size` UInt32

Event ID 7: Provider ProviderGuid received notification: RequestCode.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Debug

Description

Provider ProviderGuid received notification: RequestCode.

Message #

Provider %1 received notification: %2.

Fields #

Name	Description
`ProviderGuid` GUID
`RequestCode` UInt32

Event ID 8: Provider ProviderGuid notification handler has replied with size Size and error code "Status".

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Debug

Description

Provider ProviderGuid notification handler has replied with size Size and error code "Status".

Message #

Provider %1 notification handler has replied with size %3 and error code "%2".

Fields #

Name	Description
`ProviderGuid` GUID
`Status` UInt32	NTSTATUS reference
`Size` UInt32

Event ID 9: Notification returning with status: "Status".

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Debug

Description

Notification returning with status: "Status".

Message #

Notification returning with status: "%1"

Fields #

Name	Description
`Status` UInt32	NTSTATUS reference

Event ID 13: Query of provider ProviderGuid with id Id had data collected.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Analytic

Description

Query of provider ProviderGuid with id Id had data collected.

Message #

Query of provider %1 with id %2 had data collected.

Fields #

Name	Description
`ProviderGuid` GUID
`Id` UInt64

Event ID 16: Counter CounterId of instance (CounterSetGuid, InstanceName, InstanceId) could not be modified.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational
Also via: realtime ETW trace

Description

Counter CounterId of instance (CounterSetGuid, InstanceName, InstanceId) could not be modified. Error: "Error".

Message #

Counter %5 of instance (%2, %3, %4) could not be modified. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`CounterSetGuid` GUID
`InstanceName` UnicodeString
`InstanceId` UInt32
`CounterId` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Diagnosis-PCW",
    "guid": "AABF8B86-7936-4FA2-ACB0-63127F879DBF",
    "event_source_name": "",
    "event_id": 16,
    "version": 0,
    "level": 0,
    "task": 0,
    "opcode": 0,
    "keywords": 9223372036854777856,
    "time_created": "2022-04-07T08:15:12.584665+00:00",
    "event_record_id": 352,
    "correlation": {},
    "execution": {
      "process_id": 1300,
      "thread_id": 1856
    },
    "channel": "Microsoft-Windows-Diagnosis-PCW/Operational",
    "computer": "WIN-FPV0DSIC9O6.lab.local",
    "security": {
      "user_id": "S-1-5-19"
    }
  },
  "event_data": {
    "Error": 1168,
    "CounterSetGuid": "40E6824E-1B9B-4329-9A6E-E94C8FB03A3F",
    "InstanceName": "_Default",
    "InstanceId": 0,
    "CounterId": 84
  },
  "message": ""
}

References #

Example event sourced from https://github.com/NextronSystems/evtx-baseline

Event ID 17: Provider ProviderGuid failed to unregister.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Provider ProviderGuid failed to unregister. Error: "Error".

Message #

Provider %2 failed to unregister. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`ProviderGuid` GUID

Event ID 18: Instance (CounterSetGuid, InstanceName, InstanceId) could not be closed.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Instance (CounterSetGuid, InstanceName, InstanceId) could not be closed. Error: "Error".

Message #

Instance (%2, %3, %4) could not be closed. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`CounterSetGuid` GUID
`InstanceName` UnicodeString
`InstanceId` UInt32

Event ID 19: Instance (CounterSetGuid, InstanceName, InstanceId) could not be queried.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Instance (CounterSetGuid, InstanceName, InstanceId) could not be queried. Error: "Error".

Message #

Instance (%2, %3, %4) could not be queried. Error: "%1"

Fields #

Name	Description
`Error` UInt32
`CounterSetGuid` GUID
`InstanceName` UnicodeString
`InstanceId` UInt32

Event ID 20: Unable to load pcw.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Unable to load pcw.sys, phase Phase failed. Error: "ErrorCode".

Message #

Unable to load pcw.sys, phase %2 failed. Error: "%1"

Fields #

Name	Description
`ErrorCode` UInt32
`Phase` UInt32

Event ID 21: Kernel-mode provider failed to register counter set CounterSetName.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Kernel-mode provider failed to register counter set CounterSetName. Error: "ErrorCode".

Message #

Kernel-mode provider failed to register counter set %3. Error: "%1"

Fields #

Name	Description
`ErrorCode` UInt32
`CounterSetNameLength` UInt16
`CounterSetName` UnicodeString

Event ID 22: Kernel-mode provider failed to create instance InstanceName of counter set CounterSetName.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Kernel-mode provider failed to create instance InstanceName of counter set CounterSetName. Error: "ErrorCode".

Message #

Kernel-mode provider failed to create instance %5 of counter set %3. Error: "%1"

Fields #

Name	Description
`ErrorCode` UInt32
`CounterSetNameLength` UInt16
`CounterSetName` UnicodeString
`InstanceNameLength` UInt16
`InstanceName` UnicodeString

Event ID 23: Kernel-mode provider failed to add instance InstanceName of counter set CounterSetName.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Operational

Description

Kernel-mode provider failed to add instance InstanceName of counter set CounterSetName. Error: "ErrorCode".

Message #

Kernel-mode provider failed to add instance %5 of counter set %3. Error: "%1"

Fields #

Name	Description
`ErrorCode` UInt32
`CounterSetNameLength` UInt16
`CounterSetName` UnicodeString
`InstanceNameLength` UInt16
`InstanceName` UnicodeString

Event ID 24: PCW driver failed when executing ioctl function FunctionIndex.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Analytic

Description

PCW driver failed when executing ioctl function FunctionIndex. Error: "ErrorCode".

Message #

PCW driver failed when executing ioctl function %2. Error: "%1"

Fields #

Name	Description
`ErrorCode` UInt32
`FunctionIndex` UInt32

Event ID 25: PCW device missing during registration of counter set CounterSetGuid of provider ProviderGuid.

Provider: Microsoft-Windows-Diagnosis-PCW
Channel: Debug

Description

PCW device missing during registration of counter set CounterSetGuid of provider ProviderGuid.

Message #

PCW device missing during registration of counter set %2 of provider %1.

Fields #

Name	Description
`ProviderGuid` GUID
`CounterSetGuid` GUID

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 {AABF8B86-7936-4FA2-ACB0-63127F879DBF}

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

Observed on:

Win11-26200.6584, sample captured from a live trace, binary version 10.0.26100.1, captured 2026-06-02
WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, 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)