Lenovo C2 manual Troubleshooting Audio Problems, Troubleshooting Software Problems

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or other computers that may be generating magnetic interference.

2.Move any interfering devices away from the computer.

3.If the problem persists, consult with Lenovo Service.

5.2 Troubleshooting Audio Problems

Problem: No sound from integrated speakers

Troubleshooting and problem resolution:

Adjust the windows volume control — Double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted. Adjust the volume, bass, or treble controls to eliminate distortion.

Reinstall the audio driver

Disconnect headphones from the headphone connector — Sound from the speakers is automatically disabled when headphones are connected to the computer’s side-panel headphone connector.

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 — Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted.

5.3 Troubleshooting Software Problems

Problem: You are unable 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 Application tab, select the problem program, and 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

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Contents Lenovo C2 Series Important Safety Information Page Contents Troubleshooting and Confirming Setup Chapter Using the Computer Hardware This chapter contains the following topicsFront view of the computer Left and right view of the computerRear view of the computer Computer stand Connecting your computer If you have powered speakers with an adapter If you have powered speakers without an adapter MS/MS Pro/MMC/SD/SDHC Important information about using the computer Keyboard and Mouse wired Chapter Using the Rescue System Method 1 Automatic Installation Installing Drivers and Software Shipped with Your ComputerMethod 2 Manual Installation OneKey Recovery Main functionsFile Management File BackupLaunch Setting a Password SearchOneKey Antivirus UpdateScan and Kill Viruses Online Update User Guide Chapter Using the Computer Software Disc Utility Power2Go Burning DiscsStarting the Burner Software HelpWinDVD McAfee Security Center Using McAfee Security CenterCheck for updates Scanning for VirusesSystem Maintenance Cleaning Up the Disk Backup status and configurationRestoring the System Performing Daily Maintenance Tasks Checking For, and Correcting Disk ErrorsDefragmenting the Disks Following are general methods for cleaning the components Setup Solving Problems Troubleshooting Display ProblemsTroubleshooting Audio Problems Troubleshooting Software ProblemsTroubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows User Guide