Dell OptiPlex 755, Quick Reference Manual

Page: 79 / 622

Quick Reference Guide
79
Microsoft Windows Vista™
1
Click the Windows Vista start button , 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 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 79).
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.
Windows XP:
1
Click Start
→
My Computer
→
Properties
→
Hardware
→
Device Manager .
2
Right-click the device for which the new driver was installed and click
Properties .
3
Click the Drivers tab
→
Roll Back Driver .
Windows Vista:
1
Click the Windows Vista start button , 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.