Last week reports indicated that Microsoft is planning to unveil a Windows 8 upgrade program for those who buy Windows 7 PCs starting in early June, and according to WinSuperSite, the upgrade will cost $14.99. While Microsoft has offered similar programs in the past to those who buy a Windows PC close to the release of a new major version, some prior offers upgraded users to the equivalent version — but the Windows 8 offer will provide the Pro version for customers that buy Windows 7 Home Basic or higher. While a $14.99 upgrade would be considerably lower than the operating system's retail price, it's still higher than what Microsoft demanded from Vista owners who were offered a free upgrade to Windows 7 back in June, 2009.