Dell Precision T5400 (Late 2007) - Manual (Page 143)

Reinstalling Software 143
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.
If Device Driver Rollback does not resolve the problem, then use System
Restore (see "Restoring Your Operating System" on page 144) to return your
computer to the operating state that existed before you installed the new
driver.
Troubleshooting Software and Hardware
Problems in the Microsoft
®
Windows
®
XP and
Microsoft Windows Vista™ Operating Systems
If a device is either not detected during the operating system setup or is
detected but incorrectly configured, you can use the Hardware
Troubleshooter to resolve the incompatibility.
To start the Hardware Troubleshooter:
Windows XP:
1 Click Start → Help and Support.
2 Type hardware troubleshooter in the search field and press
to start the search.
3 In the Fix a Problem section, click Hardware Troubleshooter.
4 In the Hardware Troubleshooter list, select the option that best describes
the problem and click Next to follow the remaining troubleshooting steps.
Windows Vista:
1 Click the Windows Vista start button , and click Help and Support.
2 Type hardware troubleshooter in the search field and press
to start the search.
3 In the search results, select the option that best describes the problem and
follow the remaining troubleshooting steps.