Windows 7 Home Premium Upgrade Version makes it easy to create a home network and share all of your favorite photos, videos, and music. You can even watch, pause, rewind, and record TV. Get the best entertainment experience with Windows 7 Home PremiumCurrently running Windows Vista?If you have Windows Vista, you can purchase Windows 7 Upgrade versions. You can do a clean install (backup your files, clean install, and reinstall your applications) or an in-place upgrade (Windows 7 installs over Windows Vista).Currently running a version of XP?If you have Windows XP, you can purchase Windows 7 Upgrade versions, but you must back up your files, clean install, and then reinstall your applications.