HP 20-k127cl Mobile manual Cleaning your computer, Cleaning products, Cleaning procedures

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Cleaning your computer

Cleaning products

Use the following products to safely clean your computer:

Dimethyl benzyl ammonium chloride 0.3 percent maximum concentration (For example: Disposable wipes come in a variety of brand names.)

Alcohol-free glass cleaning fluid

Water with mild soap solution

Dry microfiber cleaning cloth or a chamois (static-free cloth without oil)

Static-free cloth wipes

CAUTION: Avoid the following cleaning products:

Strong solvents, such as alcohol, acetone, ammonium chloride, methylene chloride, and hydrocarbons, which can permanently damage the surface of the computer.

Fibrous materials, such as paper towels, which can scratch the computer. Over time, dirt particles and cleaning agents can get trapped in the scratches.

Cleaning procedures

Follow the procedures in this section to safely clean your computer.

WARNING! To prevent electric shock or damage to components, do not attempt to clean your computer while it is turned on:

Turn off the computer. Disconnect external power.

Disconnect all powered external devices.

CAUTION: Do not spray cleaning agents or liquids directly on any computer surface. Liquids dripped on the surface can permanently damage internal components.

Cleaning the display

Gently wipe the display using a soft, lint-free cloth moistened with an alcohol-freeglass cleaner. Be sure that the display is dry before closing the display.

Cleaning the sides and cover

To clean the sides and cover, use a soft microfiber cloth or chamois moistened with one of the cleaning solutions listed previously or use an acceptable l disposable wipe.

NOTE: When cleaning the cover of the computer, use a circular motion to aid in removing dirt and debris.

Cleaning the keyboard

WARNING! To reduce the risk of electric shock or damage to internal components, do not use a vacuum cleaner attachment to clean the keyboard. A vacuum cleaner can deposit household debris on the keyboard surface.

32 Chapter 8 Maintaining peak performance

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Contents User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Performing routine maintenance Wireless connection problems Vii Input power Operating specifications Best practices Starting rightFun things to do Resource Contents More HP resourcesMore HP resources Getting to know your computer Finding your hardware and software informationFront Locating hardwareRight side Right sideEnvironmental Notices Left side Back TopLabels BottomIdentifying the labels Connecting to a network Connecting to a wireless networkUsing the wireless controls Using an Internet service providerConfiguring a wireless router Setting up a WlanProtecting your Wlan Connecting to a Wlan Connecting to a wired network Connecting to a local area network LANEnjoying entertainment features Volume controlUsing the webcam Using audioUsing video Connecting headphonesUsing Beats Audio Accessing Beats AudioUsing touch screen gestures Navigating using the keyboard and pointing devicesOne-finger slide Tapping ScrollingRotating select models only Pinching/stretchingEdge swipes Right-edge swipe Left-edge swipeTop-edge swipe and bottom-edge swipe Using the keyboard Fn keyUsing the action keys Icon Key DescriptionUsing Microsoft Windows 8 shortcut keys Using the integrated numeric keypadNum lock key Managing power Initiating Sleep and HibernationIntel Rapid Start Technology select models only Manually initiating and exiting SleepHP CoolSense select models only Setting password protection on wakeupManually initiating and exiting Hibernation Shutting down turning off the computer Using a USB device Managing and sharing informationConnecting a USB device Removing a USB deviceInserting and removing a memory card Performing routine maintenance Using Disk CleanupUsing Disk Defragmenter Maintaining peak performanceCleaning products Cleaning your computerCleaning procedures Using security measures Setting Windows passwordsSetting Setup Utility Bios passwords Using Internet security softwareInstalling software updates Installing Windows updatesUpdating software Updating the Bios Starting Setup Utility BiosDetermining the Bios version Using HP PC Hardware Diagnostics Uefi Downloading a Bios updateDownloading HP PC Hardware Diagnostics Uefi to a USB device Diagnostic section, click HP Uefi Support EnvironmentBacking up, restoring, and recovering Creating recovery media and backupsCreating HP Recovery media Restore and recovery Using Windows Refresh for quick and easy recovery Remove everything and reinstall WindowsUsing the HP Recovery partition select models only Recovering using HP Recovery ManagerWhat you need to know Using HP Recovery media to recover Removing the HP Recovery partitionChanging the computer boot order Page Troubleshooting Wireless connection problemsCannot connect to a Wlan Cannot connect to a preferred networkCannot connect to the wireless router Current network security codes are unavailablePower problems Hard drive errorNetwork status icon is not displayed Computer will not turn on or startDisplay problems Keyboard and mouse problemsComputer is not responding Computer shuts down unexpectedlyPage Audio problems No sound is producedSoftware problems Input power SpecificationsOperating specifications Electrostatic Discharge Bios Index
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