Microsoft-Windows-BitLocker-DrivePreparationTool

Event	Title	Channel	Sample	Rule
1	A problem occurred while running the BitLocker Drive Preparation Tool.	Admin	N	N
2	A problem occurred while running the BitLocker Drive Preparation Tool.	Admin	N	N
3	A problem occurred while running the BitLocker Drive Preparation Tool.	Admin	N	N
4	A problem occurred while running the BitLocker Drive Preparation Tool.	Admin	N	N
5	A problem occurred while running the BitLocker Drive Preparation Tool.	Admin	N	N
256	Warning Code: Warning_Code.	Admin	N	N
512	The BitLocker Drive Configuration Tool successfully completed.	Admin	N	N
4096	Found a candidate volume for shrink or merge.	Operational	N	N
4097	Found an unallocated extent large enough for the requested size.	Operational	N	N
4098	Disk extent located on the hard disk containing the System Drive.	Operational	N	N
4099	Command-line parameters for the BitLocker Drive Preparation Tool.	Operational	N	N
4100	Drive will shrink and new active drive PartitionNumber will be created.	Operational	N	N
4101	New drive ExtentOffset will be created from unallocated space.	Operational	N	N
4102	Drive will be set as the new system drive Volume Name.	Operational	N	N
4103	Detected Windows Recovery Environment volume Volume Path.	Operational	N	N
4104	A volume failed to meet the requirements for a target volume.	Operational	N	N

Event ID 1: A problem occurred while running the BitLocker Drive Preparation Tool.

Channel: Admin
Opcode: Initialization

Message #

A problem occurred while running the BitLocker Drive Preparation Tool.
Error Code: %1
Error Text: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString

Event ID 2: A problem occurred while running the BitLocker Drive Preparation Tool.

Channel: Admin
Opcode: Shrink

Message #

A problem occurred while running the BitLocker Drive Preparation Tool.
Error Code: %1
Error Text: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString

Event ID 3: A problem occurred while running the BitLocker Drive Preparation Tool.

Channel: Admin
Opcode: Create

Message #

A problem occurred while running the BitLocker Drive Preparation Tool.
Error Code: %1
Error Text: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString

Event ID 4: A problem occurred while running the BitLocker Drive Preparation Tool.

Channel: Admin
Opcode: Prepare

Message #

A problem occurred while running the BitLocker Drive Preparation Tool.
Error Code: %1
Error Text: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString

Event ID 5: A problem occurred while running the BitLocker Drive Preparation Tool.

Channel: Admin

Message #

A problem occurred while running the BitLocker Drive Preparation Tool.
Error Code: %1
Error Text: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString

Event ID 256: Warning Code: Warning_Code.

Channel: Admin

Message #

Warning Code: %1
Warning Text: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString

Event ID 512: The BitLocker Drive Configuration Tool successfully completed.

Channel: Admin

Description

The BitLocker Drive Configuration Tool successfully completed. The target hard disk is ready for BitLocker.

Message #

The BitLocker Drive Configuration Tool successfully completed. The target hard disk is ready for BitLocker.

Event ID 4096: Found a candidate volume for shrink or merge.

Channel: Operational
Opcode: Initialization

Message #

Found a candidate volume for shrink or merge.
Shrinkable: %1
Candidate Volume Name: %3

Fields #

Name	Description
`Shrinkable` Boolean
`ContainsWinRE` Boolean
`VolumeName` UnicodeString
`VolumeSize` UInt64
`VolumeFreeSpace` UInt64
`VolumeMaxShrinkSize` UInt64
`VolumeFlags` HexInt32
`DriveLetter` UnicodeString
`DiskNumber` UInt32
`PartitionNumber` UInt32

Event ID 4097: Found an unallocated extent large enough for the requested size.

Channel: Operational
Opcode: Initialization

Message #

Found an unallocated extent large enough for the requested size.
Offset: %3
Size: %4

Fields #

Name	Description
`DiskId` GUID
`Type` HexInt32
`Offset` UInt64
`Size` UInt64
`VolumeId` GUID

Event ID 4098: Disk extent located on the hard disk containing the System Drive.

Channel: Operational
Opcode: Initialization

Message #

Disk extent located on the hard disk containing the System Drive.
Offset: %3
Size: %4

Fields #

Name	Description
`DiskId` GUID
`Type` HexInt32
`Offset` UInt64
`Size` UInt64
`VolumeId` GUID

Event ID 4099: Command-line parameters for the BitLocker Drive Preparation Tool.

Channel: Operational
Opcode: Initialization

Message #

Command-line parameters for the BitLocker Drive Preparation Tool:
   %1

Fields #

Name	Description
`RawCommandLine` UnicodeString
`ShowUsage` Boolean
`DisplayDriveInfo` Boolean
`TargetDriveLetter` UnicodeString
`TargetAction` UInt32
`NewSystemDriveLetter` UnicodeString
`ShrinkSize` Int64
`QuietMode` Boolean
`AutoRestart` Boolean

Event ID 4100: Drive will shrink and new active drive PartitionNumber will be created.

Channel: Operational
Opcode: Initialization

Message #

Drive will shrink and new active drive %6 will be created. 
Volume Name: %1
Shrink Size: %5 Bytes

Fields #

Name	Description
`VolumeName` UnicodeString
`DriveLetter` UnicodeString
`DiskNumber` UInt32
`PartitionNumber` UInt32
`ShrinkSize` UInt64
`NewDriveLetter` UnicodeString

Event ID 4101: New drive ExtentOffset will be created from unallocated space.

Channel: Operational
Opcode: Initialization

Message #

New drive %3 will be created from unallocated space
Unallocated extent offset: %1
New partition size: %2 Bytes

Fields #

Name	Description
`ExtentOffset` UInt64
`NewPartitionSize` UInt64
`NewDriveLetter` UnicodeString

Event ID 4102: Drive will be set as the new system drive Volume Name.

Channel: Operational
Opcode: Initialization

Description

Drive will be set as the new system drive.

Message #

Drive will be set as the new system drive
Volume Name: %1

Fields #

Name	Description
`VolumeName` UnicodeString
`DriveLetter` UnicodeString
`DiskNumber` UInt32
`PartitionNumber` UInt32

Event ID 4103: Detected Windows Recovery Environment volume Volume Path.

Channel: Operational
Opcode: Initialization

Description

Detected Windows Recovery Environment volume.

Message #

Detected Windows Recovery Environment volume
Volume Path: %1

Fields #

Name	Description
`WinREVolumeName` UnicodeString
`DriveLetter` UnicodeString
`DiskNumber` UInt32
`PartitionNumber` UInt32

Event ID 4104: A volume failed to meet the requirements for a target volume.

Channel: Operational
Opcode: Initialization

Message #

A volume failed to meet the requirements for a target volume.
Volume Name: %3
Reason: %2

Fields #

Name	Description
`MessageCode` HexInt32
`MessageText` UnicodeString
`VolumeName` UnicodeString
`DriveLetter` UnicodeString
`DiskNumber` UInt32
`PartitionNumber` UInt32

Provenance

ETW provider GUID 632f767e-0ec3-47b9-ba1c-a0e62a74728a

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

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