98 Troubleshooting Tools3 Double-click the filename DSRIRRemv2.exe.NOTE: If you do not log on as a local administrator, a message appearsstating that you must log on as administrator. Click Quit, and then log on as alocal administrator.NOTE: If the partition for PC Restore does not exist on your computer’s harddrive, a message appears stating that the partition was not found. Click Quit;there is no partition to delete.4 Click OK to remove the PC Restore partition on the hard drive.5 Click Yes when a confirmation message appears.The PC Restore partition is deleted and the newly available disk space isadded to the free space allocation on the hard drive.6 Right-click Local Disk (C) in Windows Explorer, click Properties, andverify that the additional disk space is available as indicated by theincreased value for Free Space.7 Click Finish to close the PC Restore Removal window.8 Restart the computer.Using the Operating System CDBefore You BeginIf you are considering reinstalling the Windows operating system to correct aproblem with a newly installed driver, first try using Windows Device DriverRollback. (see "Using Windows Device Driver Rollback" on page 88). IfDevice Driver Rollback does not resolve the problem, then use SystemRestore to return your operating system to the operating state it was in beforeyou installed the new device driver (see "Using Microsoft Windows SystemRestore" on page 93).NOTICE: Before performing the installation, back up all data files on your primaryhard drive. For conventional hard drive configurations, the primary hard drive is thefirst drive detected by the computer.