HP CQ42-103TU, CQ42-105TU, CQ42-109TU, CQ42-111TU, CQ42-119TU, CQ42-125TU, CQ42-126TU, CQ42-133TU, CQ42-134TU, CQ42-135TU, CQ42-140TU, CQ42-151TX, CQ42-152TU, CQ42-154TX, CQ42-158TX, CQ42-160TU, CQ42-160TX, CQ42-163TX, CQ42-167TU, CQ42-168TU, CQ42-169TU, CQ42-173TU, CQ42-173TX, CQ42-189TX, CQ42-201TU, CQ42-215TU, CQ42-216TU, CQ42-251TU, CQ42-254TU, CQ42-254TX, CQ42-255TX, CQ42-257TU, CQ42-263TU, CQ42-268TX, CQ42-269TX, CQ42-275TX, CQ42-276TU Right-sidecomponents

Right-side components

Component		Description

(1)	Optical drive	Reads and writes to optical discs.

(2)	Optical drive light	Blinking: The optical drive is being accessed.

(3)	USB port	Connects an optional USB device.

(4)	RJ-11 (modem) jack (select models only)	Connects a modem cable.

(5)	AC adapter/power/battery light	● White: The computer is connected to external power and
		the battery is fully charged.
		● Blinking white: The computer is in the Sleep state.
		● Amber: A battery is charging.

(6)	Power connector	Connects an AC adapter.

(7)	Security cable slot	Attaches an optional security cable to the computer.
		NOTE: The security cable is designed to act as a deterrent,

but it may not prevent the computer from being mishandled or stolen.

Components 7

Contents

Page Page Safety warning notice Page Table of contents Page Page Page Page Page 1 Features Identifying hardware Components Top components TouchPad Lights Button and speakers Keys Display Right-sidecomponents Left-sidecomponents Bottom components Wireless antennas Additional hardware components Labels 2Wireless, local area network, and modem Using wireless devices Identifying wireless and network status icons Using the wireless controls Using the wireless action key Using HP Wireless Assistant Using operating system controls Using a WLAN Setting up a WLAN Protecting your WLAN Connecting to a WLAN Roaming to another network Using Bluetooth wireless devices (select models only) Bluetooth and Internet Connection Sharing (ICS) Troubleshooting wireless connection problems Cannot connect to a WLAN Cannot connect to a preferred wireless network Network icon is not displayed Current network security codes are unavailable WLAN connection is very weak Cannot connect to the wireless router Connecting to a local area network Page 3 Pointing devices and keyboard Using the TouchPad Turning the TouchPad on and off Using TouchPad gestures Scrolling Pinching Rotating Setting pointing device preferences Connecting an external mouse Using the keyboard Using the action keys Using the hotkey Cleaning the TouchPad and keyboard 4 Multimedia Multimedia features Identifying your multimedia components Page Adjusting the volume Using the media activity action keys Multimedia software Using CyberLink PowerDVD 8 software Using other preinstalled multimedia software Installing multimedia software from a disc Audio Connecting external audio devices Checking your audio functions Video Connecting an external monitor or projector Connecting an HDMI device (select models only) Configuring audio for HDMI (select models only) Optical drive Identifying the installed optical drive Using optical discs Selecting the right disc CD-Rdiscs CD-RWdiscs DVD±R discs DVD±RW discs Playing a CD, DVD, or BD Page Configuring AutoPlay Changing DVD region settings Observing the copyright warning Copying a CD or DVD Creating (burning) a CD or DVD Removing an optical disc (CD, DVD, or BD) Removing the optical drive Page Page Webcam (select models only) Webcam tips Adjusting webcam properties Troubleshooting The optical disc tray does not open for removal of a CD, DVD, or BD The computer does not detect the optical drive A disc does not play A disc does not play automatically A movie stops, skips, or plays erratically A movie is not visible on an external display The process of burning a disc does not begin, or it stops before completion A DVD playing in Windows Media Player produces no sound or display A device driver must be reinstalled Obtaining the latest HP device drivers Obtaining the latest Windows device drivers 5 Power management Setting power options Using power-savingstates Initiating and exiting Sleep Initiating and exiting Hibernation Using the battery meter Using power plans Viewing the current power plan Selecting a different power plan Customizing power plans Setting password protection upon exiting Sleep or Hibernation Using external AC power Connecting the AC adapter Testing an AC adapter Using battery power Displaying the remaining battery charge Finding battery information in Help and Support Using Battery Check Inserting or removing the battery Charging a battery Maximizing battery discharge time Managing low battery levels Identifying low battery levels Resolving a low battery level Calibrating a battery Step 1: Fully charge the battery Step 2: Disable Hibernation and Sleep Step 3: Discharge the battery Step 4: Fully recharge the battery Step 5: Reenable Hibernation and Sleep Conserving battery power Storing a battery Disposing of a used battery Replacing the battery Shutting down the computer Page 6 Drives Handling drives Using external drives Improving hard drive performance Using Disk Defragmenter Using Disk Cleanup Replacing the hard drive Page Page Page 7External devices and external media cards Using a USB device Connecting a USB device Removing a USB device Using Digital Media Slot cards Inserting a digital card Removing a digital card 8 Memory modules Page Page Page 9 Security Protecting the computer Using passwords Setting passwords in Windows Setting passwords in Setup Utility Administrator password Power-onpassword Managing a power-onpassword Security > Set Power-On Password Entering a power-onpassword Using antivirus software Using firewall software Installing critical updates 10 Setup Utility (BIOS) Starting Setup Utility Using Setup Utility Changing the language of Setup Utility Navigating and selecting in Setup Utility Displaying system information Restoring default settings in Setup Utility Exiting Setup Utility Setup Utility menus Main menu Security menu System Configuration menu Diagnostics menu 11 Software updates Updating the BIOS Determining the BIOS version Downloading a BIOS update Updating programs and drivers 12 Backup and recovery Creating recovery discs Backing up your information Using Windows Backup and Restore Using system restore points When to create restore points Create a system restore point Restore to a previous date and time Performing a recovery Recovering from the recovery discs Recovering from the dedicated recovery partition (select models only) Index J jacks