====== Install Windows 10 to Virtual Hard Disk (VHD) ======

  - Run "Control Panel -> Administrative Tools -> Computer Management -> Disk Management"
  - Click "Action -> Create VHD" to create the virtual hard disk. Assign 64GB or more as fixed storage space.
  - Boot from your Windows 10 installation media
  - Select the language and enter the license key. If you are upgrading from Windows 7 or Windows 8/8.1, enter the original license key.
  - Select //Custom Installation//
  - When the list of available drives is displayed, press //SHIFT-F10// to get to the command prompt.
  - Enter "notepad", then press CTRL-o to open the file open dialog. Check the drive letters assigned to the different partitions.
  - Exit notepad and enter "diskpart" on the command prompt.
  - Enter "select vdisk file=<path-to-vhd>"
  - Enter "attach vdisk"
  - Exit diskpart and the command prompt, and click "Refresh"
  - Install Windows 10 to Drive "Unallocated Space" which is the VHD.