Dell Precision T3400 User's Guide - Page 132
Reinstalling Drivers and Utilities, System, System Properties, Hardware, Device Manager, Computer
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3 Click System. 4 In the System Properties window, click the Hardware tab. 5 Click Device Manager. 6 Scroll down the list of devices and check for an exclamation point (a circle with a [!]) next to the device name. If an exclamation point appears next to the device name, you may need to reinstall the driver or install a new driver (see "Reinstalling Drivers and Utilities" on page 132). Microsoft Windows Vista™ 1 Click the Windows Vista start button , then right-click Computer. 2 Click Properties, then click 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 continue. 3 Scroll down the list of devices and check for an exclamation point (a circle with a [!]) next to the device name. If an exclamation point appears next to the device name, you may need to reinstall the driver or install a new driver (see "Reinstalling Drivers and Utilities" on page 132). Reinstalling Drivers and Utilities NOTICE: The Dell Support website at support.dell.com and your Drivers and Utilities disc provide approved drivers for your Dell computer. If you install drivers obtained from other sources, your computer may not function properly. 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. Windows XP: 1 Click Start, then click Control Panel. 2 Under Pick a Category, click Performance and Maintenance. 3 Click System. 132 Reinstalling Software