Windows 8.1 - How to boot on a VHDX disk

To create a dual boot on your physical PC:

1. Create a Hyper-V Virtual Machine with a bootable VHDX disk file.
2. Via Windows Explorer, mount the VHDX disk in Windows 8.1 (right-click on the .vhdx file and select Mount).
3. A new drive will app appear in Windows Explore (ex. with F: drive letter).
4. Start a Command Prompt As Administrator, and run “bcdboot F:\Windows”.
5. Check and configure the dual boot options via “msconfig.exe” (tab Boot). With msconfig, you can delete this bootable disk if you want.