is it possible to install Windows 8 Upgrade on clean hdd? or I have to install Windows 7 first? I am just curious.
You'll need a prior installation of Windows to use the Windows 8 Upgrade - any version of Windows from XP onwards counts as a valid upgrade path. If you don't have an older copy of Windows, you'll need to pick up an OEM copy instead: http://www.amazon.co...OLE&tag=phuk-21