Free Windows 7 Upgrade with Windows Vista Home Premium purchase! Buy a qualifying PC running the Windows Vista operating system from June 26, 2009 through January 31, 2010, and you will be eligible for a free Windows 7 upgrade from Microsoft after general availability.
 

Microsoft Windows Vista Business (OEM Edition), 32-bit. OEM Windows Operating Systems can only be purchased in conjunction with a fully assembled system or by a system builder. 

Note: The current VIA EPIA and Jetway mainboards do not fully meet the requirements for Windows Vista . Some features are not supported. See our Frequently Asked Questions for details and minimum system requirements.