Recently, Microsoft has announced and released Windows 10 for Devices, called IoT. To download the current Version of Windows 10 IoT for Raspberry Pi you have to sign up for Microsoft Connect and more. Follow the steps below, to setup your Pi. In general you will need a physical device, which is running a Windows 10 preview build, but in this post I describe you a way, to setup your SD card as a physical hard drive to be able to do it in a Hyper-V environment.
The idea behind this article is to simulate a physical harddrive by changing the driver of the connected USB-card reader device, which is running the mounted SD-card drive.