Windows 7 Ultimate is the most powerful and versatile edition of Windows 7. It combines the remarkable ease of use of Home Premium’s entertainment features with the enterprise-centric features of Professional. For more security, you can also encrypt your data with BitLocker and Bitlocker To Go. And for added flexibility, you can work in any of 35 languages (via the Windows Update feature). With Windows 7 Ultimate you do not have to do without anything.