ne of the more interesting innovations in the original version of Windows Vista was a feature called Windows Anytime Upgrade, which allowed users of the Windows Vista Home Basic, Home Premium, and Business editions to upgrade to a higher-end version electronically. Pricing of these upgrades was, of course, significantly reduced over purchasing a retail Upgrade box, making the service both thriftier and less complicated.
There was just one problem: For whatever reason, many consumers balked at paying for an electronic upgrade. And because Windows Anytime Upgrade required the original Windows Vista install disc, many users had to wait for Microsoft to physically mail them a disc before they could perform the upgrade, undermining the advantages of the instant upgrade.
Full Article – http://www.winsupersite.com/win7/ff_wau.asp
