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34 Quick Reference Guide
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4
Click the
System Restore
tab.
5
Ensure that
Turn off System Restore
is unchecked.
Using the Last Known Good Configuration
1
Restart your computer and press <F8> when the message
Please select the
operating system to start
appears.
2
Highlight
Last Known Good Configuration
, press <Enter>, press <l>, and then select your
operating system when prompted.
Other Options to Help Resolve Additional Device or Software Conflicts
NOTICE: The following processes erase all of the information on your hard drive.
• Reinstall your operating system using the operating system installation guide and
Operating
System
CD.
During the operating system reinstallation, you can select to delete the existing partitions and
reformat your hard drive.
• Reinstall all drivers, beginning with the chipset, using the
Drivers and Utilities
CD
.
Dell Diagnostics
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide.
When to Use the Dell Diagnostics
If you experience a problem with your computer, perform the checks in "Solving Problems" on
page 32 and run the Dell Diagnostics before you contact Dell for technical assistance.
It is recommended that you print these procedures before you begin.
NOTICE: The Dell Diagnostics works only on Dell™ computers. Using this program with other computers
can cause incorrect computer responses or result in error messages.
The Dell Diagnostics allow you to:
• Perform quick checks or extensive tests on one or all devices
• Choose how many times a test is run
• Display or print test results or save them in a file
• Suspend testing if an error is detected or terminate testing if a certain number of errors occur
• Access online
Help
screens that describe the tests and how to run them
• Read status messages that tell you whether tests completed successfully
• Receive error messages if problems are detected
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