Solving USB flash drive problems
........................................................................................................................................
87
Solving front panel component problems
.........................................................................................................................
88
Solving Internet access problems
.......................................................................................................................................
88
Solving software problems
..................................................................................................................................................
89
7
POST error messages and diagnostic front panel LEDs and audible codes
.................................................................................
90
POST numeric codes and text messages
...........................................................................................................................
90
Interpreting system validation diagnostic front panel LEDs and audible codes
..........................................................
95
8
Password security and resetting CMOS
..............................................................................................................................................
97
Resetting CMOS and/or the password jumper
..................................................................................................................
98
Changing a Setup or Power-on password
.......................................................................................................................
100
Deleting a Setup or Power-on password
.........................................................................................................................
100
9
Using HP PC Hardware Diagnostics (UEFI)
.......................................................................................................................................
101
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device
.............................................................................
102
10
System backup and recovery
...........................................................................................................................................................
103
Backing up, restoring, and recovering
..............................................................................................................................
103
Creating recovery media and backups
........................................................................................................
103
Creating HP Recovery media (select products only)
.............................................................
104
Using Windows tools
......................................................................................................................................
105
Restore and recovery
.....................................................................................................................................
105
Recovering using HP Recovery Manager
................................................................................
106
What you need to know before you get started
...............................................
106
Using the HP Recovery partition (select products only)
..................................
106
Using HP Recovery media to recover
..................................................................
107
Changing the computer boot order
....................................................................
107
Removing the HP Recovery partition (select products only)
..........................
107
Appendix A
Battery replacement
..........................................................................................................................................................
108
Appendix B
Statement of memory volatility
.......................................................................................................................................
111
Current BIOS steps
...............................................................................................................................................................
111
Nonvolatile memory usage
................................................................................................................................................
113
Questions and answers
......................................................................................................................................................
115
Using HP Sure Start
.............................................................................................................................................................
116
Appendix C
Power cord set requirements
...........................................................................................................................................
117
General requirements
.........................................................................................................................................................
117
vii