The HoloLens emulator is an extension to Visual Studio that will simulate how a program will run on the HoloLens. This is great for those who want to get started with HoloLens development but do not have an actual HoloLens, yet. This software does require the use of Microsoft Hyper-V, a feature only available inside the Windows 10 Pro operating system. Hyper-V is a virtualization environment, which allows the creation of a virtual machine. This virtual machine emulates the specific hardware, so one can test without the actual hardware.