Solving keyboard and mouse problems .............................................................................................................. 56
Solving hardware installation problems ............................................................................................................. 58
Solving network problems .................................................................................................................................. 59
Solving memory problems .................................................................................................................................. 61
Solving USB flash drive problems ........................................................................................................................ 63
Solving connected component problems ............................................................................................................ 63
Solving Internet access problems ....................................................................................................................... 64
Solving software problems .................................................................................................................................. 64
POST numeric codes and text messages ............................................................................................................. 66
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 71
Downloading the latest HP PC Hardware Diagnostics UEFI version .............................. 75
Downloading HP PC Hardware Diagnostics UEFI by product name or number
(select products only) ..................................................................................................... 76
ix