HRESULT 0xC03A0012 (ERROR_VHD_INVALID_SIZE): meaning and diagnosis

Status / error code:

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Constant name:

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Operating System:

Description:

The size of the virtual hard disk is not valid.

Could be also:
Constant	Type	OS
STATUS_VHD_INVALID_SIZE	NTSTATUS	Windows

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ERROR_VHD_METADATA_WRITE_FAILURE	ERROR_VHD_INVALID_FILE_SIZE

ERROR_VHD_INVALID_SIZE

ERROR_VHD_INVALID_SIZE means the virtual size recorded by the VHD/VHDX is invalid. This can result from a malformed header, an interrupted conversion, or damaged metadata.

What to do

Validate the file on a copy and compare its reported virtual size with the expected VM disk configuration.
Check whether a conversion, resize, or restore was interrupted before the error appeared.
Restore the image from a known-good backup if the format metadata cannot be read consistently.

Get-VHD -Path "D:\VMs\disk.vhdx" | Format-List Path,Size,FileSize,VhdType

Microsoft: Get-VHD

Microsoft: Test-VHD

Microsoft: Resize-VHD

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