Windows 10: Can't convert a VHDX with Convert-VHD in PowerShell or in Hyper-V Manager

I have a VHDX file that is an image of the system drive in a new laptop, created with Diskpart version 10.0.19041.1:


create vdisk file="D:\PC_Original.vhdx" type=expandable source="\\.\physicaldrive0"


If this is successful it was, I should be able to store and work with the VHDX on another system. The file PC_Original.vhdx mounts just fine on another Windows 10 Enterprise v20H2 system. There are 5 partitions on the original drive, and each shows up under Diskpart list partitions, as expected. If I dismount the VHDX and try to convert it in PowerShell v5.1.19041.610, I get:


PS E:\> test-vhd -path e:\PC_Original.vhdx

True


PS E:\> convert-vhd -path e:\PC_Original.vhdx -destinationpath e:\new.vhd

convert-vhd : Failed to convert the virtual disk.

The system failed to convert 'e:\PC_Original.vhdx'.

Failed to convert the virtual disk.

The system failed to convert 'e:\PC_Original.vhdx': The parameter is incorrect. 0x80070057.

At line:1 char:1

+ convert-vhd -path e:\PC_Original.vhdx -destinationpath e:\new.vhd

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidArgument: : [Convert-VHD], VirtualizationException

+ FullyQualifiedErrorId : InvalidParameter,Microsoft.Vhd.PowerShell.Cmdlets.ConvertVhd



The VHDX passes validation, but I get the cryptic error: 0x80070057.


Can anyone explain what's wrong here or how to fix it, please? I've found many explanations for the 0x80070057 error code online, but none seem to apply to my situation.


Thanks in advance for any help.

:)

 

Convert VMWare VM to Hyper-V

VirtualBox has a tool that can convert VDMK files to VHD. You don't have to install full VirtualBox, only the part that contains the tool:





See this tutorial on our sister site Seven Forums: Windows 10 - Test Try with No Risk, No Install - Windows 7 Help Forums

Part One Step 2 tells what to download, Part Three how to use the tool to convert VDMK to VHD.

 

Risk with adding Hyper-V?

Or just use Convert-VHD –Path c:\test\MY-VM.vhdx –DestinationPath c:\test\MY-NEW-VM.vhd

Converting Hyper-V .vhdx to .vhd file formats for use in Windows Azure

 

Risk with adding Hyper-V?

You do not need to install Hyper-V to convert a vhd to a vhdx file if that is what you want to do.

Simply create a vhdx file of same or larger capacity as vhd file.

TThen mount both vhd and vhdx files as drive and clone vhd to vhdx using Macrium Reflect Free.