8 POST error messages .................................................................................................... 114
POST numeric codes and text messages .................................................................................. 115
Interpreting POST diagnostic front panel LEDs and audible codes .............................................. 124
9 Password security and resetting CMOS ......................................................................... 128
Resetting the password jumper ............................................................................................... 129
Clearing and resetting the CMOS .......................................................................................... 130
10 HP PC Hardware Diagnostics ...................................................................................... 132
Why run HP PC Hardware Diagnostics ................................................................................... 132
How to access and run HP PC Hardware Diagnostics ............................................................... 132
Downloading HP PC Hardware Diagnostics to a USB device ..................................................... 133
11 System backup and recovery ...................................................................................... 134
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ....................................... 134
Creating recovery media and backups .................................................................... 134
Restoring and recovering using Windows tools ......................................................... 135
Using Reset when the system is not responding .......................................... 135
Recovery using the Windows recovery USB flash drive ............................... 136
Recovery using Windows operating system media (purchased separately) .... 136
Backing up, restoring, and recovering in Windows 7 ............................................................... 137
Creating recovery media ........................................................................................ 137
Creating recovery media using HP Recovery Manager (select models only) ... 138
Creating recovery discs with HP Recovery Disc Creator (select models only) . . 139
Creating recovery discs ............................................................ 139
Backing up your information .................................................................... 140
System Restore ...................................................................................................... 140
System Recovery ................................................................................................... 141
System Recovery when Windows is responding ......................................... 141
System Recovery when Windows is not responding .................................... 142
System Recovery using recovery media (select models only) ......................... 142
Using HP Recovery Disc operating system discs (select models only) ............. 143
Appendix A Battery replacement ..................................................................................... 145
Appendix B Power cord set requirements ........................................................................ 148
General requirements ........................................................................................................... 148
Japanese power cord requirements ........................................................................................ 148
Country-specific requirements ................................................................................................ 149
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