After the success of the first post Guide to Installing and Booting Windows 8 Developer Preview off a VHD (Virtual Hard Disk). The ever famous Scott Hanselman posted a new article on
Booting off a VHD means that the Hard Drive will be virtualized. Your Windows 8 system will run ON THE HARDWARE with your real video card, real CPU, real network card, etc. However, it will NOT run directly from your hard drive – it will run from a file on your hard drive. Windows 8 will live and run on its own personal “virtualized hard drive” which is the VHD.
So if you have Windows 7 now then you can “boot to a virtual hard disk (VHD)” and get all the loveliness of Windows 8 running on hardware without any risk to your hard drive. and in case you don’t like the new windows just Delete the VHD and update your boot record. very simple.
For all the enthusiasts out there, this guide will come in hand for installing Windows8 for the time being.