NTSTATUS 0xC0380012 (STATUS_VOLMGR_DISK_NOT

Status / error code:

Category:

Constant name:

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Operating System:

Description:

The requested operation requires an empty disk, but the selected disk still contains layout data.

Could be also:
Constant	Type	OS
ERROR_VOLMGR_DISK_NOT_EMPTY	HRESULT	Windows

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STATUS_VOLMGR_DISK_MISSING	STATUS_VOLMGR_DISK_NOT_ENOUGH_SPACE

STATUS_VOLMGR_DISK_NOT_EMPTY

STATUS_VOLMGR_DISK_NOT_EMPTY means that the requested Volume Manager operation requires a blank target, but Windows still sees partition, volume, or layout information on the selected disk. It is a protective status: an operation designed for unused media must not silently overwrite a disk with data or boot metadata.

An apparently empty drive-letter list is not enough. Hidden, recovery, OEM, dynamic-disk, or offline structures can remain on the physical disk.

What to check

Identify the physical disk by stable identity and inspect its complete layout before making any destructive decision.
Confirm that it is not a system, boot, recovery, clustered, or data disk selected by mistake.
Use an approved backup and decommissioning procedure before removing existing layout data; do not automate a clean operation solely because this status occurred.

Microsoft: DRIVE_LAYOUT_INFORMATION_EX

Microsoft: Volume Manager error codes

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