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HP Pavilion dv4-2100 Notebook PC User Guide - Windows 7 - Page 18

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Component Description (8) Num lock light On: The embedded numeric keypad is enabled. - or - (9) Wireless light Num lock is enabled on a connected optional numeric keypad. ● Blue: An integrated wireless device, such as a wireless local area network (WLAN) device and/or a Bluetooth® device, is on. ● Amber: All wireless devices are off. *The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The power light on the front of the computer is visible whether the computer is open or closed. 6 Chapter 2 Features

Section	Page
Using HP QuickWeb (select models only)	13
Starting HP QuickWeb	14
Disabling and enabling HP QuickWeb	14
Features	15
Identifying hardware	15
Components	16
Top components	16
TouchPad	16
Lights	17
Buttons, speakers, and fingerprint reader	19
Keys	20
Display	21
Front components	22
Rear component	22
Right-side components	23
Left-side components	24
Bottom components	25
Wireless antennas	26
Additional hardware components	27
Labels	28
Wireless, local area network, and modem	29
Using wireless devices	29
Identifying wireless and network status icons	30
Using the wireless controls	30
Using the wireless button	31
Using HP Wireless Assistant	31
Using HP Connection Manager (select models only)	32
Using operating system controls	32
Using a WLAN	33
Setting up a WLAN	33
Protecting your WLAN	34
Connecting to a WLAN	35
Roaming to another network	35
Using HP Mobile Broadband (select models only)	36
Inserting a SIM	37
Removing a SIM	38
Using Bluetooth wireless devices (select models only)	39
Bluetooth and Internet Connection Sharing (ICS)	39
Troubleshooting wireless connection problems	40
Cannot connect to a WLAN	40
Cannot connect to a preferred network	41
Network icon is not displayed	41
Current network security codes are unavailable	41
WLAN connection is very weak	42
Cannot connect to the wireless router	42
Using the modem (select models only)	43
Connecting a modem cable	43
Connecting a country-specific modem cable adapter	44
Selecting a location setting	44
Viewing the current location selection	44
Adding new locations when traveling	45
Solving travel connection problems	46
Connecting to a local area network	47
Pointing devices and keyboard	48
Using the TouchPad	48
Setting TouchPad preferences	49
Connecting an external mouse	49
Using keyboard hotkeys	50
Displaying system information	51
Opening Help and Support	51
Opening the Print Options window	52
Opening a Web browser	52
Switching the screen image	52
Initiating Sleep	53
Initiating QuickLock	53
Decreasing screen brightness	53
Increasing screen brightness	53
Playing, pausing or resuming an audio CD or a DVD	54
Stopping an audio CD or a DVD	54
Playing previous track or section of an audio CD or a DVD	54
Playing next track or section of an audio CD or a DVD	54
Using keypads	55
Using the embedded numeric keypad	56
Enabling and disabling the embedded numeric keypad	56
Switching key functions on the embedded numeric keypad	56
Using an optional external numeric keypad	56
Cleaning the TouchPad and keyboard	57
Multimedia	58
Multimedia features	58
Identifying your multimedia components	59
Using the MediaSmart button (select models only)	60
Adjusting the volume	61
Using the media activity hotkeys	62
Multimedia software	63
Using HP MediaSmart software	63
Using other preinstalled multimedia software	63
Installing multimedia software from a disc	63
Audio	64
Connecting external audio devices	64
Checking your audio functions	64
Video	65
Connecting an external monitor or projector	65
Connecting an HDMI device	66
Configuring audio for HDMI	67
Watching TV (select models only)	68
Webcam	69
Troubleshooting	70
The optical disc tray does not open for removal of a CD, DVD, or BD	70
The computer does not detect the optical drive	71
A disc does not play	72
A disc does not play automatically	72
A DVD movie stops, skips, or plays erratically	73
A DVD movie is not visible on an external display	73
The process of burning a disc does not begin, or it stops before completion	73
A DVD playing in Windows Media Player produces no sound or display	74
A device driver must be reinstalled	74
Obtaining the latest HP device drivers	75
Obtaining the latest Windows device drivers	75
HP Mobile Remote Control (Select Models Only)	76
Component functions	76
Button quick reference	77
Inserting or replacing the battery	80
Troubleshooting	81
HP Media Remote Control (Select Models Only)	82
Component functions	82
Button quick reference	83
Inserting or replacing the battery	87
Troubleshooting	88
Power management	89
Setting power options	89
Using power-saving states	89
Initiating and exiting Sleep	89
Initiating and exiting Hibernation	90
Using the battery meter	90
Using power plans	91
Viewing the current power plan	91
Selecting a different power plan	91
Customizing power plans	91
Setting password protection on wakeup	91
Switching between graphics modes (select models only)	92
Using external AC power	93
Connecting the AC adapter	94
Testing an AC adapter	95
Using battery power	96
Finding battery information in Help and Support	96
Using Battery Check	96
Displaying the remaining battery charge	97
Inserting or removing the battery	97
Charging a battery	98
Maximizing battery discharge time	99
Managing low battery levels	99
Identifying low battery levels	99
Resolving a low battery level	100
Resolving a low battery level when external power is available	100
Resolving a low battery level when a charged battery is available	100
Resolving a low battery level when no power source is available	100
Resolving a low battery level when the computer cannot exit Hibernation	100
Calibrating a battery	101
Step 1: Fully charge the battery	101
Step 2: Disable Hibernation and Sleep	101
Step 3: Discharge the battery	102
Step 4: Fully recharge the battery	102
Step 5: Reenable Hibernation and Sleep	102
Conserving battery power	103
Storing a battery	103
Disposing of a used battery	103
Replacing the battery	103
Shutting down the computer	104
Drives	105
Handling drives	105
Optical drive	106
Identifying the installed optical drive	106
Using optical discs	107
Selecting the right disc	108
CD-R discs	108
CD-RW discs	108
DVD±R discs	108
DVD±RW discs	108
LightScribe DVD+R discs	109
Blu-ray Disc	109
Playing a CD, DVD, or BD	109
Configuring AutoPlay	110
Changing DVD region settings	110
Observing the copyright warning	111
Copying a CD or DVD	111
Creating (burning) a CD or DVD	112
Removing an optical disc (CD, DVD, or BD)	113
Using external drives	114
Improving hard drive performance	115
Using Disk Defragmenter	115
Using Disk Cleanup	115
Using HP ProtectSmart Hard Drive Protection (select models only)	116
Identifying HP ProtectSmart Hard Drive Protection status	116
Using HP ProtectSmart Hard Drive Protection software	117
Replacing the hard drive	118
Replacing a drive in the SmartBay	122
External devices	124
Using a USB device	124
Connecting a USB device	124
Removing a USB device	125
Using an eSATA device	126
Connecting an eSATA device	126
Removing an eSATA device	127
Using the expansion port	127
External media cards	128
Using Digital Media Slot cards	128
Inserting a digital card	128
Removing a digital card	129
Using ExpressCards	130
Configuring an ExpressCard	130
Inserting an ExpressCard	130
Removing an ExpressCard	132
Memory modules	133
Security	137
Protecting the computer	137
Using passwords	138
Setting passwords in Windows	138
Setting passwords in Setup Utility	139
Administrator password	139
Managing an administrator password	139
Entering an administrator password	140
Power-on password	140
Managing a power-on password	140
Entering a power-on password	140
Using antivirus software	141
Using firewall software	141
Installing critical security updates	142
Installing an optional security cable	142
Using the fingerprint reader (select models only)	143
Locating the fingerprint reader	143
Registering fingerprints	144
Using your registered fingerprint to log on to Windows	145
Setup Utility (BIOS)	146
Starting Setup Utility	146
Using Setup Utility	147
Changing the language of Setup Utility	147
Navigating and selecting in Setup Utility	147
Displaying system information	148
Restoring default settings in Setup Utility	148
Exiting Setup Utility	149
Setup Utility menus	149
Main menu	149
Security menu	149
System Configuration menu	150
Diagnostics menu	150
Software updates	151
Updating the BIOS	152
Determining the BIOS version	152
Downloading a BIOS update	153
Updating programs and drivers	154
Backup and recovery	155
Creating recovery discs	156
Backing up your information	157
Using Windows Backup and Restore	158
Using system restore points	159
When to create restore points	159
Create a system restore point	159
Restore to a previous date and time	159
Performing a recovery	160
Recovering from the recovery discs	160
Recovering from the dedicated recovery partition (select models only)	160