For developers, IT administrators, and virtualization enthusiasts, having a ready-to-use Windows 10 virtual hard disk (VHD) image can save hours of installation and configuration time. Unlike standard ISO files, a VHD file can be booted natively (dual-boot without a separate partition), attached to Hyper-V virtual machines, or even mounted in Windows 10 Pro/Enterprise for testing.
bcdedit /copy current /d "Windows 10 VHD" then bcdedit /set guid device vhd=[C:]\path.vhdx.