Lenovo 27 Series manual Troubleshooting Software Problems

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Problem: No sound from headphones.

Troubleshooting and problem resolution:

Check the headphone cable connection — ensure that the headphone cable is securely inserted into the headphone connector.

Adjust the Windows volume control — select the speaker icon from the

Settings Charm or click the arrow on taskbar to show the hidden icons in Windows desktop mode, then click the speaker icon. Ensure that the volume is turned up and the sound is not muted.

Troubleshooting Software Problems

Problem: You are unable to exit a running program normally.

Troubleshooting and problem resolution:

1.Open the Task Manager window by pressing Ctrl, Alt and Delete at the same time.

2.Select the problem program, then click the End Task button.

Problem: You need to install or uninstall a program.

Problem resolution:

During installation never abort the install process by powering the system off or through other drastic means. This can cause system program problems or even failure during system initialization.

During the uninstall process, never directly delete the files or folders. This is harmful to the operating system, and might cause a system-wide malfunction.

Use the following procedure to properly uninstall programs:

1.Back up all documents and system settings related to the program before removing it.

2.If the program has its own uninstaller, run it directly to uninstall the program.

3.If the program does not have its own uninstaller, then select Apps → Control Panel from the Search charm.

4.From the Control Panel, choose Programs → Programs and Features.

5.Find the applicable program from the Programs and Features dialog box and then select Uninstall/Change.

6.Perform the instructions displayed to uninstall the software.

34User Guide

Image 39 Contents
Lenovo IdeaCentre Horizon 27 Series Important Safety Information Page Contents Using the Rescue System Using the Computer Hardware Front view of the computer Left and right view of the computer Rear view of the computer Computer stand Connecting your computerImportant information about using the computer Hold the computer tightly when you carry it Connecting to the Internet Using the E-Dice Charging the E-Dice Dice Components and ConnectorsPlaying with the E-Dice Use and Maintenance Using Windows Switching between the main Windows 8 interfaces Charms BarShutting down the computer Windows Help and Support Switching between appsClosing an app Opening other system programsUser Guide  Touch Screen Calibration Touch screen instructionsUser Gesture Instructions for the Touch screen Touch Screen CalibrationBasic Hand Gestures User Guide User Guide Related Touch Screen Settings Precautions when using the Touch Screen User Guide Using the Rescue System OneKey Recovery Method 1 Automatic Installation Driver and Application InstallationUser Guide Using the Software Registration Lenovo SupportTroubleshooting Confirming Setup Troubleshooting Display Problems Solving ProblemsTroubleshooting Audio Problems Troubleshooting Touch screenTroubleshooting Software Problems Special considerations for troubleshooting Windows Troubleshooting Problems Hard DisksBios setup utility Performing Daily Maintenance Tasks User Guide Declaration AppendixTrademarks 10109/6266 Energy Star StatementEnabling ErP compliance mode