By default, a system image includes Windows, drivers required for Windows to run and your system settings, programs, and files. You can use a system image to restore the OS and data of your computer if your hard drive or computer ever stops working. You must however remember that it will be a complete restoration; you can't choose individual items to restore, and all of your current programs, system settings, and files are replaced.
You can manually create a system image if you want to include additional data partitions or drives.
• Click on Create an image backup in the left pane of the Backup and Restore window.
• Select the location you want to store the system image. It can be another partition, a network location or an external disc. Click on Next.
• Now click on the Start backup button to start the process of creating a system image.