Troubleshooting Tools 51Undoing the Last System RestoreNOTICE: Before you undo the last system restore, save and close all open files and exit any openprograms. Do not alter, open, or delete any files or programs until the system restoration is complete.1 Click the Start button, point to All Programs→ Accessories→ System Tools, and then clickSystem Restore.2 Click Undo my last restoration and click Next.Enabling System RestoreIf you reinstall Windows XP with less than 200 MB of free hard-disk space available, SystemRestore is automatically disabled. To see if System Restore is enabled:1 Click the Start button and click Control Panel.2 Click Performance and Maintenance.3 Click System.4 Click the System Restore tab.Ensure that Turn off System Restore is unchecked.Using Dell PC Restore by SymantecNOTE: Dell PC Restore is available only on computers purchased in certain regions.Use Dell PC Restore by Symantec only as the last method to restore your operating system. PCRestore restores your hard drive to the operating state it was in when you purchased the computer.Any programs or files added since you received your computer— including data files—arepermanently deleted from the hard drive. Data files include documents, spreadsheets, e-mailmessages, digital photos, music files, and so on. If possible, back up all data before using PCRestore.NOTICE: Using PC Restore permanently deletes all data on the hard drive and removes any applicationsor drivers installed after you received your computer. If possible, back up the data before using PCRestore.To use PC Restore:1 Turn on the computer.During the boot process, a blue bar with www.dell.com appears at the top of the screen.2 Immediately upon seeing the blue bar, press .If you do not press in time, let the computer finish restarting, and thenrestart the computer again.NOTICE: If you do not want to proceed with PC Restore, click Reboot in the following step.3 On the next screen that appears, click Restore.