Windows 7 Ultimate is a versatile and powerful edition of Windows 7. It is 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 many languages. Get it all with Windows 7 Ultimate. SP1 is a combined service pack for both operating systems encapsulated in a single installer. Based on business value, customers all over the world continue to deploy Windows 7. With the availability of SP1, there really is no better time for customers to migrate.
Microsoft Windows 7 Ultimate w/SP1 - license and media