We know you love Windows XP—after all, you've been telling us that for years.
With Windows 7, we used your feedback to make things even better. From switching between programs to recording TV, Windows 7 simplifies the way you use your PC—and the way your PC connects with the world.
Simplifies everyday tasks
Windows 7 makes the basics easier than ever. With HomeGroup , it’s simple to share music, documents, printers, and everything else with the other PCs running Windows 7 in your house. Windows Search frees you from the chore of hunting through folders and subfolders to locate your stuff. Better taskbar previews give you a great view of what's open, and Jump Lists show you recent files with a single right-click.
Works the way you want
It doesn’t matter how much your PC can do if it’s not running as smoothly as you expect. So we designed Windows 7 to help your PC sleep and resume faster . Windows 7 supports the latest advances in PC hardware, like 64-bit computing and multi-core processors, and improved memory utilization helps your hardware reach its full performance potential.
Makes new things possible
Once you’ve got that simpler, faster PC, some cool new features would be great. Here you go: You'll be able to connect to networks —home, work, coffee shop—with a couple of clicks, and with Windows Touch (and the right hardware), you’ll soon be using your fingers to flip through files, work with pictures, and even “paint.”
Reference: Microsoft Company