HP ProDesk 400 G2

8 POST error messages ................................................................................................................................. 116
POST numeric codes and text messages .......................................................................................................... 116
Interpreting POST diagnostic front panel LEDs and audible codes .................................................................. 123
9 Password security and resetting CMOS ........................................................................................................ 126
Resetting the password jumper ........................................................................................................................ 126
Changing a Setup or Power-On password ........................................................................................................ 127
Deleting a Setup or Power-On password .......................................................................................................... 128
Clearing and resetting the CMOS ....................................................................................................................... 128
10 HP PC Hardware Diagnostics ..................................................................................................................... 130
Why run HP PC Hardware Diagnostics .............................................................................................................. 130
How to access and run HP PC Hardware Diagnostics ....................................................................................... 130
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 130
11 System backup and recovery .................................................................................................................... 132
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ............................................................. 132
Creating recovery media and backups ........................................................................................... 132
Restoring and recovering using Windows tools ............................................................................. 132
Using Reset when the system is not responding ......................................................... 133
Recovery using the Windows recovery USB flash drive ............................................... 133
Recovery using Windows operating system media (purchased separately) .............. 134
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 134
Creating recovery media ................................................................................................................. 135
Creating recovery media using HP Recovery Manager (select models only) .............. 135
Creating recovery discs with HP Recovery Disc Creator (select models only) ............ 136
Creating recovery discs .............................................................................. 136
Backing up your information ........................................................................................ 137
System Restore ............................................................................................................................... 137
System Recovery ............................................................................................................................. 138
System Recovery when Windows is responding .......................................................... 138
System Recovery when Windows is not responding ................................................... 139
System Recovery using recovery media (select models only) .................................... 139
Using HP Recovery Disc operating system discs (select models only) ....................... 140
Appendix A Power cord set requirements ....................................................................................................... 142
General requirements ....................................................................................................................................... 142
Japanese power cord requirements ................................................................................................................. 142
Country-specific requirements ......................................................................................................................... 143
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