Operating System Disc 1338. Select the check box to confirm that you want to continuereformatting the hard drive and restoring the system software to thefactory condition, then click Next. The restore process begins and maytake five or more minutes to complete.9. When the restore operation is complete, click Finish to restart thecomputer.Operating System DiscAbout Operating System DiscCAUTION: Using the Operating System disc to restore youroperating system permanently deletes all data files on yourcomputer. If possible, backup your data files before using theoperating system disc.NOTE: The Operating System disc is optional and may not ship withyour computer.You can use the Operating System disc to install or reinstall the operatingsystem on your computer.The installation process may take some time to complete. After you installthe operating system, you must also reinstall the device drivers, virusprotection software, and other software.Reinstalling the Operating System Using the OperatingSystem DiscCAUTION: Using the Operating System disc to reinstall theoperating system, permanently deletes all data files on yourcomputer. If possible, backup your data files before using theseoptions.To reinstall the operating system:1. Insert the Operating System disc and restart the computer.2. When the DELL™ logo appears, press immediately.NOTE: If you wait too long and the operating system logo appears,continue to wait until you see the Microsoft Windows desktop;then, shut down your computer and try again3. Select the appropriate boot device from the list and press .4. Follow the instructions on the screen.