Windows 7 Home Premium offers the best entertainment experience on your PC, making the things you do every day easier. With fewer clicks, faster searching, easier browsing, and simpler ways to connect, there's less between you and what you want to do. Windows 7 is designed to improve the performance of your PC, so it's faster, more secure, and more reliable. PCs with Windows 7 simply work the way you want them to work.
Note: If your computer is running Windows XP, you’re eligible to buy the upgrade version of Windows 7. However, when you upgrade, you’ll need to first back up all of your files to an external drive, and then re-install your applications from the original discs or setup files. For detailed instructions, see Upgrading from Windows XP to Windows 7 (custom installation).