What does NTSTATUS 0xC03A001B (STATUS_VHD_INVALID_TYPE) mean?

 
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ConstantTypeOS
ERROR_VHD_INVALID_TYPEHRESULTWindows
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STATUS_VIRTUAL_DISK_LIMITATION STATUS_VHD_INVALID_STATE

STATUS_VHD_INVALID_TYPE

The API operation and the VHD type are incompatible

STATUS_VHD_INVALID_TYPE is an operation precondition failure. VHDX describes fixed, dynamic, and differencing virtual disks, but an operation can be meaningful for only some of those types. For example, a differencing chain has parent-child rules that a standalone fixed disk does not have.

The error does not by itself say that the image is damaged. It says that code or management tooling asked the virtual-disk stack to perform an action outside the allowed type/state combination. Determine the actual type from the virtual-disk metadata and consult the specific operation contract before deciding whether conversion, merge, or a different maintenance path is appropriate.

What to verify

  • Record the disk type, whether a parent is configured, and the exact operation that returned the status.
  • Query information from the opened virtual-disk handle instead of deriving type from the file extension or Hyper-V UI label.
  • Preserve the differencing-chain relationship during diagnosis; copying only the child file can hide the original mismatch and create a second failure.

References


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