Backup and Restore—improved for Windows 7—creates safety copies of your most important files, so if you lose something, it won't be lost forever.
Let Windows choose what to back up, or pick individual folders, libraries, or drives. Windows can back up files on whatever schedule you choose. Just set it and forget it. In Windows 7, you can back up files to another drive, your network, or a DVD. Backup and Restore for your personal PC and attached DVD or external hard drives comes with all editions of Windows.
If you want to backup to a network location, say on your company's central server, network attached storage, or another computer on your network, you'll need Windows 7 Professional or Ultimate.