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and the connection from the AC adapter to the AC outlet to make sure the connections are

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● The computer does not turn on. ● The display does not turn on. ● The power lights are off. To test the AC adapter: 1. Shut down the computer. 2. Remove the battery from the computer. 3. Connect the AC adapter to the computer, and then plug it into an AC outlet. 4. Turn on the computer. ● If the power lights turn on, the AC adapter is functioning properly. ● If the power lights remain off, check the connection from the AC adapter to the computer and the connection from the AC adapter to the AC outlet to make sure the connections are secure. ● If the connections are secure and the power lights remain off, the AC adapter is not functioning and should be replaced. Contact support for information on obtaining a replacement AC power adapter. 24 Chapter 5 Managing power

Section	Page
Starting right	9
Best practices	9
Fun things to do	9
More HP resources	10
Finding your hardware and software information	11
Connecting to a network	12
Connecting to a wireless network	12
Identifying wireless and network status icons	12
Using the wireless controls	12
Using the wireless button	12
Using operating system controls	13
Using a WLAN	13
Using an Internet service provider	13
Setting up a WLAN	13
Configuring a wireless router	14
Protecting your WLAN	14
Connecting to a WLAN	15
Using Bluetooth wireless devices	15
Connecting to a wired network	15
Connecting to a local area network (LAN)	16
Enjoying entertainment features	17
Using the webcam	17
Using audio	17
Connecting speakers	17
Connecting headphones	17
Connecting a microphone	17
Checking the sound	18
Using video	18
Connecting a VGA monitor or projector	18
DisplayPort	20
Connecting an HDMI TV or monitor	20
Configuring audio settings (with HDMI TV)	21
Using the keyboard and pointing devices	22
Using the action keys	22
Using the TouchPad	23
Navigating	23
Selecting	24
Using TouchPad gestures	24
Horizontal scrolling	24
Edge scrolling	25
Managing power	26
Shutting down the computer	26
Setting power options	26
Using power-saving states	26
Initiating and exiting Suspend	27
Initiating and exiting Hibernation or Hybrid Sleep (select models only)	27
Using the Power icon	28
Using Power Settings	28
Viewing the current Power Settings	28
Changing the current Power Settings	28
Running on battery power	28
Factory-sealed battery (select models only)	28
Removing a user-replaceable battery (select models only)	29
Displaying the remaining battery charge	29
Charging a battery	29
Maximizing battery life	29
Managing low battery levels	30
Identifying low battery levels	30
Resolving a low battery level	30
Resolving a low battery level when external power is available	30
Resolving a low battery level when a charged battery is available	30
Conserving battery power	30
Storing a battery	30
Disposing of a used battery	31
Replacing the battery	31
Using external AC power	31
Testing an AC adapter	31
Managing and sharing information	33
Using a USB device	33
Connecting a USB device	33
Removing a USB device	34
Inserting and removing a digital storage card	35
Using optical drives	36
Inserting an optical disc	36
Tray-load	36
Slot-load	37
Removing an optical disc	37
Tray-load	37
When the disc tray opens normally	37
When the disc tray fails to open normally	38
Slot-load	39
Maintaining your computer	40
Updating programs and drivers	40
Cleaning your computer	40
Cleaning procedures	40
Cleaning the display (All-in-Ones or Notebooks)	41
Cleaning the sides or cover	41
Cleaning the TouchPad, keyboard, or mouse	41
Traveling with or shipping your computer	41
Securing your computer and information	43
Protecting the computer	43
Using passwords	43
Setting passwords in the operating system	44
Setting passwords in Setup Utility (BIOS) and Computer Setup	44
Managing an administrator password	44
Entering an administrator password	45
Managing a power-on password	45
Entering a power-on password	45
Using Internet security software	45
Using antivirus software	45
Using firewall software	45
Securing your wireless network	46
Backing up your software applications and information	46
Using an optional security cable lock	46
Using Setup Utility (BIOS) and HP PC Hardware Diagnostics (UEFI)	48
Starting Setup Utility	48
Using Setup Utility	48
Changing the language of Setup Utility	48
Navigating and selecting in Setup Utility	48
Displaying system information	49
Restoring factory default settings in Setup Utility	49
Exiting Setup Utility	49
Using HP PC Hardware Diagnostics (UEFI)	49
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device	50
Backing up, restoring, and recovering	51
Creating a restore image	51
Creating restore image on DVDs	51
Creating a restore image on a USB device	51
Restoring the original factory state	52
Backing up your data files	52
Restoring your data files	53
Support	54
Contacting support	54
Labels	54
Specifications	56
Input power	56
Operating environment	57
Electrostatic Discharge	58
Accessibility	59
Supported assistive technologies	59
Contacting support	59