Solving Problems 97Reinstalling Microsoft ® Windows ® XPBefore You BeginIf you are considering reinstalling the Windows XP operating system to correct a problemwith a newly installed driver, first try using Windows XP Device Driver Rollback. If DeviceDriver Rollback does not resolve the problem, then use System Restore to return youroperating system to the operating state it was in before you installed the new device driver.See "Using Windows XP Device Driver Rollback" on page 92 and "Using Microsoft ®Windows ® XP System Restore" on page 95.NOTICE: Before performing the installation, back up all data files on your primary hard drive.For conventional hard drive configurations, the primary hard drive is the first drive detected bythe computer.To reinstall Windows XP, you need the following items:• Dell™ Operating System CD• Dell Drivers and Utilities CDNOTE: TheDrivers and Utilities CD contains drivers that were installed during assembly of thecomputer. Use theDrivers and Utilities CD to load any required drivers.• Product Key (Product ID Number)NOTE: The Product Key is the bar code number on the sticker that is located on the externalside cover of your computer. You may be prompted for the Product Key when you use theOperating System CD under certain conditions.Reinstalling Windows XPTo reinstall Windows XP, perform all the steps in the following sections in the order inwhich they are listed.The reinstallation process can take 1 to 2 hours to complete. After you reinstall theoperating system, you must also reinstall the device drivers, virus protection program, andother software.NOTICE: TheOperating System CD provides options for reinstalling Windows XP. The optionscan overwrite files and possibly affect programs installed on your hard drive. Therefore, do notreinstall Windows XP unless a Dell technical support representative instructs you to do so.NOTICE: To prevent conflicts with Windows XP, disable any virus protection software installedon your computer before you reinstall Windows XP. See the documentation that came with thesoftware for instructions.