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Contents 7
Diagnostic Light Codes Before POST . . . . . . . 121
Diagnostic Light Codes During POST . . . . . . . 123
Beep Codes . . . . . . . . . . . . . . . . . . . . . . . 129
Error Messages
. . . . . . . . . . . . . . . . . . . . . 130
Dell Diagnostics
. . . . . . . . . . . . . . . . . . . . . 136
When to Use the Dell Diagnostics
. . . . . . . . . 136
Starting the Dell Diagnostics From Your Hard
Drive
. . . . . . . . . . . . . . . . . . . . . . . . 137
Starting the Dell Diagnostics From the Drivers and
Utilities Disc . . . . . . . . . . . . . . . . . . . . 137
Dell Diagnostics Main Menu
. . . . . . . . . . . . 138
11 Reinstalling Software . . . . . . . . . . . . . . 141
Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . 141
What Is a Driver?
. . . . . . . . . . . . . . . . . . 141
Identifying Drivers
. . . . . . . . . . . . . . . . . 141
Reinstalling Drivers and Utilities . . . . . . . . . . 142
Troubleshooting Software and Hardware Problems in
the Microsoft
®
Windows
®
XP and Microsoft Windows
Vista™ Operating Systems . . . . . . . . . . . . . . . 143
Restoring Your Operating System
. . . . . . . . . . . . 144
Using Microsoft
Windows
System Restore . . . . 144
Using Dell™ PC Restore and Dell Factory Image
Restore . . . . . . . . . . . . . . . . . . . . . . . 146
Using the Operating System Disc
. . . . . . . . . 149
12 Adding and Replacing Parts . . . . . . . . . 151
Before You Begin . . . . . . . . . . . . . . . . . . . . 151