HRESULT 0xC03A0025 (ERROR_VHD_RESIZE_WOULD_TRUNCATE

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ERROR_VHD_RESIZE_WOULD_TRUNCATE_DATA the requested resize operation could not be completed because it might truncate user data residing on the virtual.

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ERROR_CTLOG_INCONSISTENT_TRACKING_FILE	ERROR_VHD_COULD_NOT_COMPUTE_MINIMUM_VIRTUAL_SIZE

ERROR_VHD_RESIZE_WOULD_TRUNCATE_DATA

ERROR_VHD_RESIZE_WOULD_TRUNCATE_DATA means Windows refused to shrink a virtual disk because the requested size could cut off data that still exists on the virtual disk.

Safe resize sequence

Back up the VM or disk first.
Shrink supported partitions and file systems inside the guest before shrinking the VHDX on the host.
Check the disk minimum safe size and do not force a smaller value just because the guest shows free space.

Get-VHD -Path "D:\VMs\disk.vhdx" | Select Path,Size,MinimumSize

Resize-VHD can expand VHD and VHDX files, but shrink operations apply only to VHDX.

Microsoft: Resize-VHD

Microsoft: Get-VHD

Microsoft: Manage virtual hard disks

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