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HP 20-k127cl Mobile, 20-k014us Mobile, 20-k120us Mobile, 20-k121us Mobile manual Software problems

Models: 20-k014us Mobile 20-k127cl Mobile 20-k120us Mobile 20-k121us Mobile 20-k014ca Mobile

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Software problems

●Shut down the computer, and then turn it on again.

●Update or reinstall the drivers. See Updating programs and drivers on page 31.

●Refresh or restore your computer. See Backing up, restoring, and recovering on page 39.

52 Chapter 11 Troubleshooting

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HP 20-k127cl Mobile, 20-k014us Mobile, 20-k120us Mobile, 20-k121us Mobile, 20-k014ca Mobile manual Software problems

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 Starting right Best practicesFun things to do Resource Contents More HP resources More HP resources Getting to know your computer Finding your hardware and software informationFront Locating hardware Right side Right side Environmental Notices Left side Back Top Bottom LabelsIdentifying the labels Connecting to a network Connecting to a wireless networkUsing the wireless controls Using an Internet service provider Setting up a Wlan Configuring a wireless routerProtecting your Wlan Connecting to a Wlan Connecting to a wired network Connecting to a local area network LAN Enjoying entertainment features Volume controlUsing the webcam Using audio Using video Connecting headphonesUsing Beats Audio Accessing Beats Audio Navigating using the keyboard and pointing devices Using touch screen gesturesOne-finger slide Tapping Scrolling Pinching/stretching Rotating select models onlyEdge swipes Right-edge swipe Left-edge swipe Top-edge swipe and bottom-edge swipe Using the keyboard Fn key Using the action keys Icon Key Description Using Microsoft Windows 8 shortcut keys Using the integrated numeric keypad Num lock key Managing power Initiating Sleep and HibernationIntel Rapid Start Technology select models only Manually initiating and exiting Sleep Setting password protection on wakeup HP CoolSense select models onlyManually initiating and exiting Hibernation Shutting down turning off the computer Using a USB device Managing and sharing information Connecting a USB device Removing a USB device Inserting and removing a memory card Performing routine maintenance Using Disk CleanupUsing Disk Defragmenter Maintaining peak performance Cleaning your computer Cleaning productsCleaning procedures Using security measures Setting Windows passwords Setting Setup Utility Bios passwords Using Internet security softwareInstalling software updates Installing Windows updates Updating software Starting Setup Utility Bios Updating the BiosDetermining the Bios version Using HP PC Hardware Diagnostics Uefi Downloading a Bios update Downloading HP PC Hardware Diagnostics Uefi to a USB device Diagnostic section, click HP Uefi Support Environment Backing up, restoring, and recovering Creating recovery media and backups Creating HP Recovery media Restore and recovery Using Windows Refresh for quick and easy recovery Remove everything and reinstall Windows Recovering using HP Recovery Manager Using the HP Recovery partition select models onlyWhat you need to know Removing the HP Recovery partition Using HP Recovery media to recoverChanging the computer boot order Page Troubleshooting Wireless connection problemsCannot connect to a Wlan Cannot connect to a preferred network Cannot connect to the wireless router Current network security codes are unavailable Power problems Hard drive errorNetwork status icon is not displayed Computer will not turn on or start Display problems Keyboard and mouse problemsComputer is not responding Computer shuts down unexpectedlyPage Audio problems No sound is produced Software problems Specifications Input powerOperating specifications Electrostatic Discharge Bios Index