Hi all, Maybe this is a silly question but ca The Microsoft Windows 8 Pro Pack - Product Upgrade from Windows 8 be used as a clean install I know the Microsoft Windows 8 Pro - Upgrade Version - 1 PC - DVD (Upgrade from Windows 7, Vista or XP) Can be just wonder as the Pro Pack includes WMC If so would it be adjusting the registery from 1 to 0 Just a thought may be a daft one but someone may know as most setup disc have the option to upgrade or clean install Thanks