For each eligible upgrade path, all available upgrade versions for a Qualifying Product (e.g., language-specific versions, territory-specific versions, 32 bit/64 bit platform) will be supported. Upgrade media will be product version specific and must correspond to the Qualifying Product Version.

Additional Upgrade Path Restrictions: A language version of the qualifying Windows Vista product can only be upgraded to the same language version of the Windows 7 upgrade software. Also, the Windows Vista product can only be upgraded to the associated edition of Windows 7. As an example, Windows Vista Home Premium K edition can only be upgraded to Windows 7 Home Premium K edition.

OEMs will ship Offer Forms as defined in these permitted upgrade paths. No other upgrade paths are available or supported under the Program.

Important Note: If an end user attempts to upgrade to an unsupported upgrade path, the end user may have to re-format the PC hard drive and/or may lose applications, files and settings available with the previous installed version of Windows software.

As an example, the following upgrades are not allowed in the Program:

• Upgrades from Windows Vista Home Basic or Windows Vista Starter
• Upgrades from Windows Vista Home Premium to Windows 7 Professional or Ultimate
• Upgrades from Windows Vista Business to Windows 7 Ultimate

IMPORTANT: Before installing any operating system, check that your computer meets the minimum hardware requirements for the version of the operating system you want to install. You should also back up your data files, or save them to a safe location, before upgrading.