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System Messages

83

Dell Diagnostics

86

When to Use Dell Diagnostics

86

Starting Dell Diagnostics From Your

 

Hard Drive

87

Starting Dell Diagnostics From the Drivers and

 

Utilities Media

88

Dell Diagnostics Main Menu

88

Drivers

90

What Is a Driver?

90

Identifying Drivers

91

Reinstalling Drivers and Utilities

91

Using Windows Device Driver Rollback

91

Using the Drivers and Utilities Media

92

Troubleshooting Software and Hardware Problems

 

in the Microsoft Windows Vista™ Operating

 

System

93

Restoring Your Operating System

94

Using Microsoft Windows System Restore . . . .

94

Using Dell Factory Image Restore

95

Using the Operating System Media

96

Troubleshooting LCD Display Problems

98

4 Removing and Installing Parts

99

Before You Begin

99

Recommended Tools

99

Turning Off Your Computer

99

Before Working Inside Your Computer

100

Removing the Computer Cover

101

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Contents

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Dell XPS 420 owner manual Dell Diagnostics Main Menu, Microsoft Windows Vista Operating