Backup Windows 7 System Data

How to Backup Windows 7 System:1.Click the Start button --> All Programs --> Maintenance --> Backup and Restore --> On the right of the window, click "Set up backup" links.2.In the "Set up backup" dialog box, select a disk partition from the lists , such as Local Disk D or Disk E --> Click Next --> Check "Let Windows choose(recommended)" and then Next --> In the next dialog box, Click "Save