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ERROR_VHD_FORMAT_UNSUPPORTED_VERSION
ERROR_VHD_FORMAT_UNSUPPORTED_VERSION indicates that the file identifies itself as a virtual hard disk format revision that the current Windows or Hyper-V stack cannot process.
What to check
- Record the host operating-system and Hyper-V versions that produced the file and the host that is trying to open it.
- Open a copy on a supported, current Hyper-V host instead of editing version fields in the image.
- If the file was created by another virtualization product, confirm that it exports a Microsoft-compatible VHD or VHDX image.
Microsoft: VHDX file format specification
Microsoft: Manage virtual hard disks
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