What does NTSTATUS 0xC03A0015 (STATUS_VIRTDISK_NOT_VIRTUAL_DISK) mean?

STATUS_VIRTDISK_NOT_VIRTUAL_DISK

The input is not a VHD-family object for this operation

STATUS_VIRTDISK_NOT_VIRTUAL_DISK means the virtual-disk operation reached an object that is not recognized as a supported virtual disk. A raw physical-disk path, an arbitrary data file, a sidecar file, or a truncated image cannot be treated as a VHD merely because a caller expected one.

Do not begin by repairing headers or changing an extension. First establish which layer produced the path and whether the caller intended a VHD or VHDX image, an ISO, a physical disk, or a volume. That distinction decides whether the correct next step is a different API path or an image-integrity investigation.

What to verify

• Capture the object type and the original producer of the path, not only the filename used at the failing call.
• Use GetVirtualDiskInformation only after a valid virtual-disk handle exists; it cannot turn an arbitrary file into a VHD.
• Compare the result with provider-not-found: this status points to object recognition rather than absence of a provider.

References

• Microsoft: OpenVirtualDisk
• Microsoft: AttachVirtualDisk
• Microsoft: Virtual Disk API

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