HP : LY849UA, : LW883AW, : G4 1107NR, : B4B15UA manual Power management, Shutting down the computer

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4 Power management

NOTE: A computer may have a power button or a power switch. The term power button is used throughout this guide to refer to both types of power controls.

Shutting down the computer

CAUTION: Unsaved information is lost when the computer shuts down.

The Shut down command closes all open programs, including the operating system, and then turns off the display and computer.

Shut down the computer under any of the following conditions:

●When you need to replace the battery or access components inside the computer

●When you are connecting an external hardware device that does not connect to a USB or video port

●When the computer will be unused and disconnected from external power for an extended period

Although you can shut down the computer with the power button, the recommended procedure is to use the Windows Shut down command:

NOTE: If the computer is in the Sleep state or in Hibernation, you must first exit Sleep or Hibernation before shutdown is possible.

1.Save your work and close all open programs.

2.Select Start > Shut down.

NOTE: If you have been registered to a network domain, the button you click is called Shut Down instead of Turn Off Computer.

If the computer is unresponsive and you are unable to use the preceding shutdown procedures, try the following emergency procedures in the sequence provided:

●Press ctrl+alt+delete, and then click the Power button.

●Press and hold the power button for at least 5 seconds.

●Disconnect the computer from external power and remove the battery.

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Contents HP Notebook Product notice Safety warning notice Iv Safety warning notice Table of contents VGA External cards and devices Security Page Page Introduction Finding more information about your new computerIdentifying wireless and network status icons Creating a wireless connectionNetworking select models only Turning wireless devices on or off Using HP Connection Manager select models onlyUsing a Wlan Using operating system controlsConnecting to an existing Wlan Setting up a new WlanProtecting your Wlan Roaming to another network Using HP Mobile Broadband select models onlyInserting a SIM Using GPS select models only Removing a SIMUsing Bluetooth wireless devices Connecting to a wired networkBluetooth and Internet Connection Sharing ICS Using a modem select models onlyConnecting a modem cable Connecting a country- or region-specific modem cable adapterSelecting a location setting Viewing the current location selectionConnecting to a local area network LAN select models only Select Start Devices and PrintersPage Multimedia Using the media activity controlsAudio Webcam select models only Adjusting the volumeChecking audio functions on the computer Video DisplayPortHdmi Intel Wireless Display select models only Using CyberLink PowerDVD select models onlyConfiguring audio for Hdmi Power management Shutting down the computerSetting power options Using power-saving statesInitiating and exiting Sleep Initiating and exiting HibernationUsing the power meter Using power plansViewing the current power plan Selecting a different power planSetting password protection on wakeup Using HP Power Manager select models onlyCustomizing power plans Finding battery information Using battery powerUsing Battery Check Displaying the remaining battery charge Maximizing battery discharge timeManaging low battery levels Identifying low battery levelsStoring a battery Conserving battery powerResolving a low battery level Disposing of a used battery Using external AC powerReplacing the battery Using HP CoolSense select models only Testing an AC adapterExternal cards and devices Using Digital Media Slot cards select models onlyInserting a digital card Using ExpressCards select models only Configuring an ExpressCardRemoving a digital card Inserting an ExpressCardRemoving an ExpressCard Using smart cards select models only Inserting a smart cardConnecting a USB device Using a USB deviceRemoving a smart card Connecting a 1394 device Using 1394 devices select models onlyRemoving a USB device Connecting an eSATA device Using an eSATA device select models onlyRemoving a 1394 device Using optional external devices Using optional external drivesUsing the expansion port select models only Removing an eSATA deviceUsing optional external devices Drives Handling drivesUsing hard drives Using Disk DefragmenterUsing Disk Cleanup Improving hard drive performanceManaging power with a parked hard drive Identifying HP ProtectSmart Hard Drive Protection statusUsing optical drives select models only Identifying the installed optical driveUsing HP ProtectSmart Hard Drive Protection software Inserting an optical discRemoving an optical disc Slot loadWhen the disc tray opens normally Slot load Using RAID select models only Sharing optical drivesSecurity Using passwordsProtecting the computer Setting passwords in Windows Setting passwords in Setup Utility BiosManaging an administrator password Entering an administrator passwordUsing antivirus software Using firewall softwareManaging a power-on password Entering a power-on passwordInstalling critical security updates Installing an optional security cableUsing the fingerprint reader select models only Locating the fingerprint readerMaintenance Cleaning your computerCleaning the display Cleaning the TouchPad and keyboardUsing SoftPaq Download Manager Setup Utility Bios and System Diagnostics Using Setup Utility BiosStarting Setup Utility Bios Changing the language of Setup Utility BiosRestoring factory settings in Setup Utility Bios Navigating and selecting in Setup Utility BiosDisplaying system information Updating the Bios Exiting Setup Utility BiosDetermining the Bios version Downloading a Bios update Select Start Help and Support MaintainUsing System Diagnostics Traveling with the computer Page Troubleshooting resources Electrostatic Discharge Symbols/Numerics IndexPasswords