HP ProBook 455 G1 Notebook PC User Manual
Page 10

The computer is unable to start up .................................................................................... 90
The computer screen is blank ............................................................................................ 90
Software is functioning abnormally .................................................................................... 91
The computer is on but not responding ............................................................................. 91
The computer is unusually warm ....................................................................................... 91
An external device is not working ...................................................................................... 91
The wireless network connection is not working ................................................................ 92
The optical disc tray does not open for removal of a CD or DVD ...................................... 92
The computer does not detect the optical drive ................................................................. 93
A disc does not play ........................................................................................................... 93
A movie is not visible on an external display ..................................................................... 93
The process of burning a disc does not begin, or it stops before completion .................... 94
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