Microsoft-Windows-Deduplication-Change
76 events across 1 channel
Event ID 16384: Create chunk container.
#Event ID 16385: Create chunk container completed CompletionStatus.
#Event ID 16386: Copy chunk container.
#Event ID 16387: Copy chunk container completed CompletionStatus.
#Event ID 16388: Delete chunk container.
#Event ID 16389: Delete chunk container completed CompletionStatus.
#Event ID 16390: Rename chunk container.
#Event ID 16391: Rename chunk container completed CompletionStatus.
#Event ID 16392: Flush chunk container.
#Event ID 16393: Flush chunk container completed CompletionStatus.
#Event ID 16394: Rollback chunk container.
#Event ID 16395: Rollback chunk container completed CompletionStatus.
#Event ID 16396: Mark chunk container.
#Event ID 16397: Mark chunk container read-only completed CompletionStatus.
#Event ID 16398: Write chunk container.
#Description
Write chunk container (ChunkStoreType - ContainerId.Generation.ccc) redirection table at offset ContainerOffset (Entries: StartIndex StartIndex, Count EntryCount).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
ContainerOffset UInt32 | |
StartIndex UInt32 | |
EntryCount UInt32 | |
Entries Int32 |
Event ID 16399: Write chunk container redirection table completed CompletionStatus.
#Event ID 16400: Write chunk container.
#Description
Write chunk container ( - ..ccc) header at offset (Header: USN , VDL , #Chunk , NextLocalId , Flags , LastAppendTime , BackupRedirectionTableOfset , LastReconciliationLocalId ).
Message #
Fields #
| Name | Description |
|---|---|
Signature UInt32 | |
MajorVersion UInt8 | |
MinorVersion UInt8 | |
VersionChecksum UInt16 | |
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
ContainerOffset UInt32 | |
UpdateSequenceNumber UInt64 | |
ValidDataLength UInt32 | |
ChunkCount UInt32 | |
NextLocalId UInt32 | |
Flags UInt32 | |
LastAppendTime UInt64 | |
BackupRedirectionTableOffset UInt32 | |
LastReconciliationLocalId UInt32 | |
Checksum UInt64 |
Event ID 16401: Write chunk container header completed CompletionStatus.
#Event ID 16402: Insert data chunk header to chunk container.
#Description
Insert data chunk header to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 | |
Header UInt32 |
Event ID 16403: Insert data chunk header completed CompletionStatus.
#Event ID 16404: Insert data chunk body to chunk container.
#Description
Insert data chunk body to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorrupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 |
Event ID 16405: Insert data chunk body completed CompletionStatus with ChunkId ChunkId.
#Event ID 16408: Write delete log.
#Event ID 16409: Write delete log header completed CompletionStatus.
#Event ID 16410: Append delete log.
#Description
Append delete log (ChunkStoreType - ContainerId.LogNumber.delete.log) entries at offset FileExtension (Entries: StartIndex DeleteLogOffset, Count StartIndex).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
LogNumber UInt32 | |
FileExtension UnicodeString | |
DeleteLogOffset UInt32 | |
StartIndex UInt32 | |
EntryCount UInt32 | |
Entries UInt32 |
Event ID 16411: Append delete log entries completed CompletionStatus.
#Event ID 16412: Delete delete log.
#Event ID 16413: Delete delete log completed CompletionStatus.
#Event ID 16414: Rename delete log.
#Event ID 16415: Rename delete log completed CompletionStatus.
#Event ID 16416: Write chunk container bitmap (ChunkStoreType - FileName) for chunk container.
#Description
Write chunk container bitmap (ChunkStoreType - FileName) for chunk container (ChunkStoreType - ContainerId.Generation) (Bitmap: BitLength BitLength, StartIndex StartIndex, Count EntryCount).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
FileName UnicodeString | |
ContainerId UInt32 | |
Generation UInt32 | |
BitLength UInt32 | |
StartIndex UInt32 | |
EntryCount UInt32 | |
Entries Binary |
Event ID 16417: Write chunk container bitmap completed CompletionStatus.
#Event ID 16418: Delete chunk container bitmap (ChunkStoreType - FileName) for chunk container.
#Event ID 16419: Delete chunk container bitmap completed CompletionStatus.
#Event ID 16420: Write merge log.
#Event ID 16421: Write merge log header completed CompletionStatus.
#Event ID 16422: Insert hotspot chunk header to chunk container.
#Description
Insert hotspot chunk header to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorrupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 | |
Header UInt32 |
Event ID 16423: Insert hotspot chunk header completed CompletionStatus.
#Event ID 16424: Insert hotspot chunk body to chunk container.
#Description
Insert hotspot chunk body to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorrupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 |
Event ID 16425: Insert hotspot chunk body completed CompletionStatus with ChunkId ChunkId.
#Event ID 16426: Insert stream map chunk header to chunk container.
#Description
Insert stream map chunk header to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorrupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 | |
Header UInt32 |
Event ID 16427: Insert stream map chunk header completed CompletionStatus.
#Event ID 16428: Insert stream map chunk body to chunk container.
#Description
Insert stream map chunk body to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorrupted IsCorrupted, DataSize DataSize) (Entries: StartIndex StartIndex, Count EntryCount).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 | |
StartIndex UInt32 | |
EntryCount UInt32 | |
Entries UInt64 |
Event ID 16429: Insert stream map chunk body completed CompletionStatus with ChunkId ChunkId.
#Event ID 16430: Append merge log.
#Description
Append merge log (ChunkStoreType - ContainerId.LogNumber.merge.log) entries at offset MergeLogOffset (Entries: StartIndex StartIndex, Count EntryCount).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
LogNumber UInt32 | |
MergeLogOffset UInt32 | |
StartIndex UInt32 | |
EntryCount UInt32 | |
Entries Int32 |
Event ID 16431: Append merge log entries completed CompletionStatus.
#Event ID 16432: Delete merge log.
#Event ID 16433: Delete merge log completed CompletionStatus.
#Event ID 16434: Flush merge log.
#Event ID 16435: Flush merge log completed CompletionStatus.
#Event ID 16436: Update file list entries (Remove: Update_file_list_entries_Remove, Add: Add).
#Event ID 16437: Update file list entries completed CompletionStatus.
#Event ID 16438: Set dedup reparse point on FilePath (FileId FileId) (ReparsePoint: SizeBackedByChunkStore SizeBackedByChunkStore, StreamMapInfoSize StreamMapInfoSize, StreamMapInfo StreamMapInfo).
#Description
Set dedup reparse point on FilePath (FileId FileId) (ReparsePoint: SizeBackedByChunkStore SizeBackedByChunkStore, StreamMapInfoSize StreamMapInfoSize, StreamMapInfo StreamMapInfo).
Message #
Fields #
| Name | Description |
|---|---|
FileId UInt64 | |
FilePath UnicodeString | |
SizeBackedByChunkStore UInt64 | |
StreamMapInfoSize UInt16 | |
StreamMapInfo Binary |
Event ID 16439: Set dedup reparse point completed CompletionStatus (ReparsePointSet).
#Event ID 16440: Set dedup zero data on FilePath (FileId FileId).
#Event ID 16441: Set dedup zero data completed CompletionStatus.
#Event ID 16443: Flush reparse point files completed CompletionStatus.
#Event ID 16444: Set sparse on file id FileId.
#Event ID 16445: Set sparse completed CompletionStatus.
#Event ID 16446: FSCTL_SET_ZERO_DATA on file id FileId at offset Offset and BeyondFinalZero BeyondFinalZero.
#Event ID 16447: FSCTL_SET_ZERO_DATA completed CompletionStatus.
#Event ID 16448: Rename chunk container bitmap (ChunkStoreType - FileName) for chunk container.
#Event ID 16449: Rename chunk container bitmap completed CompletionStatus.
#Event ID 16450: Insert padding chunk header to chunk container.
#Description
Insert padding chunk header to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 | |
Header UInt32 |
Event ID 16451: Insert padding chunk header completed CompletionStatus.
#Event ID 16452: Insert padding chunk body to chunk container.
#Description
Insert padding chunk body to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (Chunk: IsBatched IsBatched IsCorrupted IsCorrupted, DataSize DataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
IsBatched Boolean | |
IsCorrupted Boolean | |
DataSize UInt32 |
Event ID 16453: Insert padding chunk body completed CompletionStatus with ChunkId ChunkId.
#Event ID 16454: Insert batch of chunks to chunk container.
#Description
Insert batch of chunks to chunk container (ChunkStoreType - ContainerId.Generation.ccc) at offset WriteOffset (BatchChunkCount BatchChunkCount, BatchDataSize BatchDataSize).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
ContainerId UInt32 | |
Generation UInt32 | |
WriteOffset UInt64 | |
BatchChunkCount UInt32 | |
BatchDataSize UInt32 |
Event ID 16455: Insert batch of chunks completed CompletionStatus.
#Event ID 16456: Write chunk container directory (ChunkStoreType - FileName) for chunk container.
#Description
Write chunk container directory (ChunkStoreType - FileName) for chunk container (ChunkStoreType - ContainerId.Generation) (Directory: EntryCount FileCopyLevel).
Message #
Fields #
| Name | Description |
|---|---|
ChunkStoreType UInt8 | |
FileName UnicodeString | |
ContainerId UInt32 | |
Generation UInt32 | |
FileCopyLevel UInt32 | |
TotalEntryCount UInt32 | |
StartIndex UInt32 | |
EntryCount UInt32 | |
Entries Int64 |
Event ID 16457: Write chunk container directory completed CompletionStatus.
#Event ID 16458: Delete chunk container directory (ChunkStoreType - FileName) for chunk container.
#Event ID 16459: Delete chunk container directory completed CompletionStatus.
#Event ID 16460: Rename chunk container directory (ChunkStoreType - FileName) for chunk container.
#Event ID 16461: Rename chunk container directory completed CompletionStatus.
#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 1d5e499d-739c-45a6-a3e1-8cbe0a352beb
Defined in ddputils.dll, which carries the event manifest.
Observed on:
- 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