Create a system repair disc within Windows 7
A System Repair disc can be used to boot a computer to attempt to recover the locally installed operating system. To create a disc, access the Start Menu and type “system repair” in the search dialog box.
Place a blank DVD disc in your DVD writable drive and click on the “Create disc” button.
As long as the blank disc is found successfully, a progress bar should appear.
A final dialog box should appear asking for you to label the disc that was created.