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Compaq Presario CQ41-200 Notebook PC User Guide - Windows 7 - Page 18

Front components, Rear component, microphone, or monaural microphone.

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Front components Component (1) Power light (2) Battery light (3) Drive light (4) Audio-in (microphone) jack (5) Audio-out (headphone) jack Rear component Description ● On: The computer is on. ● Blinking: The computer is in the Sleep state. ● Off: The computer is off or in Hibernation. ● On: A battery is charging. ● Blinking: A battery that is the only available power source has reached a low battery level or a critical battery level. ● Off: If the computer is plugged into an external power source, the light is turned off when all batteries in the computer are fully charged. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low battery level. Blinking: The hard drive or optical drive is being accessed. Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. Produces sound when connected to optional powered stereo speakers, headphones, earbuds, a headset, or television audio. Component Vent Description Enables airflow to cool internal components. NOTE: The computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation. 8 Chapter 1 Features

Section	Page
Features	11
Identifying hardware	11
Components	12
Top components	12
TouchPad	12
Lights	13
Buttons and speakers	15
Keys	16
Display	17
Front components	18
Rear component	18
Right-side components	19
Left-side components	20
Bottom components	21
Wireless antennas	22
Additional hardware components	23
Labels	24
Wireless, local area network, and modem	25
Using wireless devices	25
Identifying wireless and network status icons	26
Using the wireless controls	26
Using the wireless button	26
Using HP Wireless Assistant	27
Using operating system controls	27
Using a WLAN	28
Setting up a WLAN	28
Protecting your WLAN	29
Connecting to a WLAN	30
Roaming to another network	30
Using Bluetooth wireless devices (select models only)	31
Bluetooth and Internet Connection Sharing (ICS)	31
Troubleshooting wireless connection problems	32
Cannot connect to a WLAN	32
Cannot connect to a preferred network	33
Network icon is not displayed	33
Current network security codes are unavailable	33
WLAN connection is very weak	34
Cannot connect to the wireless router	34
Using the modem (select models only)	35
Connecting a modem cable	35
Connecting a country-specific modem cable adapter	36
Selecting a location setting	36
Viewing the current location selection	36
Adding new locations when traveling	37
Solving travel connection problems	38
Connecting to a local area network	39
Pointing devices and keyboard	40
Using the TouchPad	40
Setting TouchPad preferences	41
Connecting an external mouse	41
Using keyboard hotkeys	42
Displaying system information	43
Opening Help and Support	43
Opening the Print Options window	44
Opening a Web browser	44
Switching the screen image	44
Initiating Sleep	45
Initiating QuickLock	45
Decreasing screen brightness	45
Increasing screen brightness	45
Playing, pausing or resuming an audio CD or a DVD	46
Stopping an audio CD or a DVD	46
Playing previous track or section of an audio CD or a DVD	46
Playing next track or section of an audio CD or a DVD	46
Muting speaker sound	46
Increasing speaker sound	46
Decreasing speaker sound	46
Using keypads	47
Using the embedded numeric keypad	48
Enabling and disabling the embedded numeric keypad	48
Switching key functions on the embedded numeric keypad	48
Using an optional external numeric keypad	48
Cleaning the TouchPad and keyboard	49
Multimedia	50
Multimedia features	50
Identifying your multimedia components	51
Adjusting the volume	52
Using the media activity hotkeys	53
Multimedia software	54
Using DVD Play software	54
Using other preinstalled multimedia software	54
Installing multimedia software from a disc	54
Audio	55
Connecting external audio devices	55
Checking your audio functions	55
Video	56
Connecting an external monitor or projector	56
Connecting an HDMI device	57
Configuring audio for HDMI	58
Webcam (select models only)	59
Webcam tips	59
Adjusting webcam properties	60
Troubleshooting	61
The optical disc tray does not open for removal of a CD, DVD, or BD	61
The computer does not detect the optical drive	62
A disc does not play	63
A disc does not play automatically	63
A DVD movie stops, skips, or plays erratically	64
A DVD movie is not visible on an external display	64
The process of burning a disc does not begin, or it stops before completion	64
A DVD playing in Windows Media Player produces no sound or display	65
A device driver must be reinstalled	65
Obtaining the latest HP device drivers	66
Obtaining the latest Windows device drivers	66
Power management	67
Setting power options	67
Using power-saving states	67
Initiating and exiting Sleep	67
Initiating and exiting Hibernation	68
Using the battery meter	68
Using power plans	69
Viewing the current power plan	69
Selecting a different power plan	69
Customizing power plans	69
Setting password protection on wakeup	69
Using external AC power	70
Connecting the AC adapter	71
Testing an AC adapter	72
Using battery power	73
Finding battery information in Help and Support	73
Using Battery Check	73
Displaying the remaining battery charge	74
Inserting or removing the battery	74
Charging a battery	75
Maximizing battery discharge time	76
Managing low battery levels	76
Identifying low battery levels	76
Resolving a low battery level	77
Resolving a low battery level when external power is available	77
Resolving a low battery level when a charged battery is available	77
Resolving a low battery level when no power source is available	77
Resolving a low battery level when the computer cannot exit Hibernation	77
Calibrating a battery	78
Step 1: Fully charge the battery	78
Step 2: Disable Hibernation and Sleep	78
Step 3: Discharge the battery	79
Step 4: Fully recharge the battery	79
Step 5: Reenable Hibernation and Sleep	79
Conserving battery power	80
Storing a battery	80
Disposing of a used battery	80
Replacing the battery	80
Shutting down the computer	81
Drives	82
Handling drives	82
Optical drive	83
Identifying the installed optical drive	83
Using optical discs	84
Selecting the right disc	85
CD-R discs	85
CD-RW discs	85
DVD±R discs	85
DVD±RW discs	85
LightScribe DVD+R discs	86
Blu-ray Disc	86
Playing a CD, DVD, or BD	86
Configuring AutoPlay	87
Changing DVD region settings	87
Observing the copyright warning	88
Copying a CD or DVD	88
Creating (burning) a CD or DVD	89
Removing an optical disc (CD, DVD, or BD)	90
Removing the optical drive	91
Using external drives	92
Improving hard drive performance	93
Using Disk Defragmenter	93
Using Disk Cleanup	93
Replacing the hard drive	94
External devices and external media cards	98
Using a USB device	98
Connecting a USB device	98
Removing a USB device	99
Using Digital Media Slot cards	100
Inserting a digital card	100
Removing a digital card	101
Memory modules	102
Security	106
Protecting the computer	106
Using passwords	107
Setting passwords in Windows	107
Setting passwords in Setup Utility	108
Administrator password	108
Managing an administrator password	108
Entering an administrator password	109
Power-on password	109
Managing a power-on password	109
Entering a power-on password	109
Using antivirus software	110
Using firewall software	110
Installing critical security updates	111
Installing an optional security cable	111
Setup Utility (BIOS)	112
Starting Setup Utility	112
Using Setup Utility	113
Changing the language of Setup Utility	113
Navigating and selecting in Setup Utility	113
Displaying system information	114
Restoring default settings in Setup Utility	114
Exiting Setup Utility	115
Setup Utility menus	115
Main menu	115
Security menu	115
System Configuration menu	116
Diagnostics menu	116
Software updates	117
Updating the BIOS	118
Determining the BIOS version	118
Downloading a BIOS update	119
Updating programs and drivers	120
Backup and recovery	121
Creating recovery discs	122
Backing up your information	123
Using Windows Backup and Restore	124
Using system restore points	125
When to create restore points	125
Create a system restore point	125
Restore to a previous date and time	125
Performing a recovery	126
Recovering from the recovery discs	126
Recovering from the dedicated recovery partition (select models only)	126