HP ProBook 4230s Notebook PC - Manual (Page 8)

10 Security ........................................................................................................................................................ 58
Protecting the computer ..................................................................................................................... 58
Using passwords ................................................................................................................................ 59
Setting passwords in the operating system ....................................................................... 59
Setting passwords in Computer Setup .............................................................................. 59
Managing an administrator password ............................................................... 60
Entering an administrator password .................................................................. 60
Managing a power-on password ....................................................................... 60
Entering a power-on password ......................................................................... 61
Using firewall software ....................................................................................................................... 61
Installing an optional security cable .................................................................................................... 62
11 Backup and Recovery ................................................................................................................................ 63
Performing a system recovery ............................................................................................................ 63
Backing up your information ............................................................................................................... 64
12 Computer Setup .......................................................................................................................................... 65
Starting Computer Setup .................................................................................................................... 65
Using Computer Setup ....................................................................................................................... 65
Navigating and selecting in Computer Setup ..................................................................... 65
Restoring factory settings in Computer Setup ................................................................... 66
Updating the BIOS ............................................................................................................................. 66
Determining the BIOS version ........................................................................................... 67
Downloading a BIOS update ............................................................................................. 67
Appendix A Troubleshooting and support .................................................................................................... 68
Troubleshooting .................................................................................................................................. 68
The computer is unable to start up .................................................................................... 68
The computer screen is blank ............................................................................................ 68
Software is functioning abnormally .................................................................................... 69
The computer is on but not responding ............................................................................. 69
The computer is unusually warm ....................................................................................... 69
An external device is not working ...................................................................................... 69
The wireless network connection is not working ................................................................ 70
The optical disc tray does not open for removal of a CD or DVD ...................................... 70
The computer does not detect the optical drive ................................................................. 71
A disc does not play ........................................................................................................... 71
A movie is not visible on an external display ..................................................................... 71
The process of burning a disc does not begin, or it stops before completion .................... 72
Contacting customer support ............................................................................................................. 72
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