What does HRESULT 0xC03A0026 (ERROR_VHD_COULD_NOT_COMPUTE_MINIMUM_VIRTUAL_SIZE) mean?

 
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ERROR_VHD_RESIZE_WOULD_TRUNCATE_DATA ERROR_VHD_ALREADY_AT_OR_BELOW_MINIMUM_VIRTUAL_SIZE

ERROR_VHD_COULD_NOT_COMPUTE_MINIMUM_VIRTUAL_SIZE

ERROR_VHD_COULD_NOT_COMPUTE_MINIMUM_VIRTUAL_SIZE means Windows could not determine a safe lower virtual size for the disk. The partition layout or required metadata may be missing or corrupt.

What to do

  • Do not attempt a shrink until the disk and partition table can be inspected reliably.
  • Mount a copy read-only for analysis when appropriate, or inspect it through a recovery workflow.
  • If the goal is capacity reduction, migrate data to a newly created smaller disk instead of forcing an unsafe resize.

Microsoft: Resize-VHD

Microsoft: Mount-VHD

Microsoft: Get-VHD


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