54 Solving Problemsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m Undoing the Last System RestoreNOTICE: Before undoing the last system restore, save and close all open filesand close all open programs. Do not alter, open, or delete any files or programsuntil the system restoration is complete.1 Click the Start button, point to All Programs—>Accessories—> System Tools, and then click System Restore.2 Select Undo my last restoration and click Next.NOTICE: Save and close all open files and close all open programs. Do notalter, open, or delete any files or programs until the system restoration iscomplete.3 Click Next.4 The System Restore screen appears, and then the computerautomatically restarts.5 After the computer restarts, click OK.Before reinstalling the Windows XP operating system to correct a problem,try correcting the problem by performing a Windows XP System Restore(see page 51).NOTICE: The Operating System CD provides options for reinstalling yourWindows XP operating system. The options can potentially overwrite filesinstalled by Dell and possibly affect programs installed on your hard drive.Therefore, Dell does not recommend that you reinstall your operating systemunless instructed to do so by a Dell technical support representative.NOTICE: To prevent conflicts with Windows XP, you must disable anyvirus protection software installed on your computer before you reinstallWindows XP.HINT: The CD that youneed to place in your CDor DVD drive is titledOperating System.1 Insert the Operating System CD into the CD or DVD drive.Close any program or utility that may start to run after you insert theCD into the drive.2 Turn off the computer (see page 20), and then turn the computer onagain.