HP ProBook 6555b Notebook-PC User Manual
Page 175

turning off the computer 76
TXT (Intel Trusted Execution
Technology) 145
U
Unified Extensible Firmware
Interface (UEFI) mode 144
unresponsive system 76
updates, software 154
upgrade bay
replacing a hard drive 86
replacing an optical drive 90
USB cable, connecting 93
USB devices
connecting 93
description 93
removing 94
stopping 94
USB hubs 93
USB legacy support 94, 140,
USB ports, identifying 14, 93
user password 114
V
vents, identifying 14, 16
video, recording 17
Virtualization Technology 144
volume buttons 45
volume down button,
identifying 8, 9
volume mute button,
identifying 8, 9
volume up button, identifying 8,
volume, adjusting 45
W
Web sites
HP System Software
Manager 157
HP Universal Print Driver 158
webcam 17
webcam light, identifying 11, 17
webcam properties, adjusting 61
Windows applications key,
identifying 10, 11
Windows logo key, identifying 10,
Windows Vista operating system
DVD 138
Wireless Assistant software 22,
wireless button 22
wireless button, identifying 8, 9
wireless certification label 20
wireless compartment,
identifying 16
wireless controls
button 22
operating system 22
Wireless Assistant
software 22
wireless icon 22
wireless light 22
wireless light, identifying 3, 5,
wireless network (WLAN)
connecting 26
corporate WLAN
connection 26
functional range 26
public WLAN connection 26
security 24
wireless network (WLAN),
equipment needed 24
wireless network problems,
troubleshooting 31
WLAN antennas, identifying 18
WLAN device 20, 21, 24
WLAN label 20
writable media 63
WWAN antennas, identifying 18
WWAN device 21
Index 165