Windows 7 Professional (64-Bit) is the updated version of the Vista operating system from Microsoft. Windows 7 Professional (64-Bit) has everything you need for work and home. Simplify everyday tasks: find something instantly, compare documents side-by-side, or easily back-up your complete system over a network. Enjoy a PC that works the way you want it to; supports 64-bit technologies and offers XP Mode for your business productivity applications Make new things possible: watch Internet TV, pause, rewind, and record TV or use Touch to interact with your PC in new ways. This product includes both 32- and 64-bit versions, and 90 days of Microsoft Support Services included. Microsoft Windows 7 Professional is purchase-only software and can be bought and downloaded online or shipped via mail.