Recovering the Configuration Settings ...............................................................................................................

65

6 Troubleshooting without diagnostics ............................................................................................................

66

Safety and comfort ..............................................................................................................................................

66

Before you call for technical support ..................................................................................................................

66

Helpful hints ........................................................................................................................................................

67

Solving general problems ...................................................................................................................................

68

Solving power problems ......................................................................................................................................

72

Solving hard drive problems ...............................................................................................................................

73

Solving media card reader problems ..................................................................................................................

75

Solving display problems ....................................................................................................................................

76

Solving audio problems .......................................................................................................................................

80

Solving printer problems .....................................................................................................................................

82

Solving keyboard and mouse problems .............................................................................................................

83

Solving Hardware Installation Problems ............................................................................................................

85

Solving Network Problems ..................................................................................................................................

87

Solving memory problems ..................................................................................................................................

90

Solving CD-ROM and DVD problems ....................................................................................................................

92

Solving USB flash drive problems .......................................................................................................................

94

Solving front panel component problems ..........................................................................................................

95

Solving Internet access problems .......................................................................................................................

95

Solving software problems .................................................................................................................................

96

7 POST error messages ...................................................................................................................................

98

POST numeric codes and text messages ............................................................................................................

98

Interpreting POST diagnostic front panel LEDs and audible codes ..................................................................

103

8 Password security and resetting CMOS ........................................................................................................

106

Resetting the password jumper ........................................................................................................................

106

Changing a Setup or Power-On password ........................................................................................................

107

Deleting a Setup or Power-On password ..........................................................................................................

108

Clearing and resetting the CMOS .......................................................................................................................

108

9 HP PC Hardware Diagnostics .......................................................................................................................

110

Why run HP PC Hardware Diagnostics ..............................................................................................................

110

How to access and run HP PC Hardware Diagnostics .......................................................................................

110

Downloading HP PC Hardware Diagnostics (UEFI) to a USB device ..................................................................

110

10 System backup and recovery ....................................................................................................................

112

Backing up, restoring, and recovering in Windows 8.1 or Windows 8 .............................................................

112

vii