There are tools such as Solarwinds V2V that convert from one virtual disk format to another. However I wanted to see if it was possible to convert disk formats with PowerShell. You can do it. With Microsoft tools. But unfortunately not directly. The Microsoft Virtual Machine Converter is Microsoft’s version of the VMware Virtual Machine Converter. However Microsoft’s tool will not allow you to convert VMware Workstation virtual machines directly and instead forces you to convert the hard disk in PowerShell and setup the new virtual machine in Hyper-V directly and attach the newly converted virtual hard disk.