Windows 7 is the updated version of the Vista operating system from Microsoft. Windows 7 Ultimate is the most versatile and powerful edition of Windows 7. It combines remarkable ease-of-use with the entertainment features of Home Premium and the business capabilities of Professional, including the ability to run many Windows XP productivity programs in Windows XP Mode. For added security, you can encrypt your data with BitLocker and BitLocker-To-Go. And for extra flexibility, you can work in any of 35 languages. This product includes both 32- and 64-bit versions, and 90 days of Microsoft Support Services included. Microsoft Windows 7 Ultimate is purchase-only software and can be bought and downloaded online or shipped via mail.