Dell Inspiron 1521 (Mid 2007) - Manual (Page 132)

132
Troubleshooting
Identifying Drivers
If you experience a problem with any device, identify whether the driver is the
source of your problem and, if necessary, update the driver.
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 continue.
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 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 132).
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.
1 Click Start , and then right-click Computer.
2 Click Properties, and 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 enter the Device Manager.
3 Right-click the device for which the new driver was installed and click
Properties.
4 Click the Drivers tab, and then click Roll Back Driver.
If Device Driver Rollback does not resolve the problem, use System Restore
(see "Restoring Your Microsoft® Windows Vista® Operating System" on
page 135) to return your computer to the operating state that existed before
you installed the new driver.