[教學] Installing windows 8 to a vhd

In case you don't know, you can mount a vhd (virtual hard disk) as a drive in windows 7 and install windows 8 to it; there is 3-5% performance impact
but you can uninstall win8  completely simply by deleting the vhd file

http://blogs.msdn.com/b/knom/arc ... etup-guideline.aspx