Dell OptiPlex 740 Quick Reference Guide - Page 68

Scroll down the list to see if any device has an exclamation point (a yellow circle with a [!]) on the device icon. If an exclamation point is next to the device name, you may need to reinstall the driver or install a new driver (see "Reinstalling Drivers and Utilities" on page 68). Windows® XP 1 Click Start→ Control Panel. 2 Under Pick a Category, click Performance and Maintenance, and click System. 3 In the System Properties window, click the Hardware tab, and click Device Manager. Reinstalling Drivers and Utilities NOTICE: The Dell Support website at support.dell.com and your Drivers and Utilities media provide approved drivers for Dell™ computers. If you install drivers obtained from other sources, your computer might not work correctly. Using Windows Device Driver Rollback If a problem occurs on your computer after you install or update a driver, use Windows Device Driver Rollback to replace the driver with the previously installed version. If Device Driver Rollback does not resolve the problem, then use System Restore (see "Restoring Your Operating System" on page 61) to return your computer to the operating state that existed before you installed the new driver. Windows Vista: 1 Click Start and right-click Computer. 2 Click Properties→ Device Manager. NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to enter the Device Manager. 3 Right-click the device for which the new driver was installed and click Properties. 4 Click the Drivers tab→ Roll Back Driver. 68 Quick Reference Guide