In Windows 7,Open the Control Panel as All Items View. Click on the Backup and Restore icon.
Click on the Set up backup button. It will pop-up this window setted up backup.
Select where you want to save your backup, and click on Next.
Then Select what you need to back up.
Make sure your backup settings are correct.It will start to Backup User and System Files.
When finished, click on the Next button.You will now see the backup progress.