User manual LENOVO IDEACENTRE B540

[. . . ] Machine type: 10097/2566 [B340] 10099/2568 [B540] 10101/3363 [B540p] 10098/2567 [B345] 10100/4749 [B545] Lenovo IdeaCentre B3/B5 Series User Guide Version 1. 0 2012. 02 31501557 Important Safety Information Before using this manual, it is important that you read and understand all of the related safety information for this product. Refer to the Safety and Warranty Guide that you received with this product for the latest safety information. Reading and understanding this safety information reduces the risk of personal injury or damage to your product. The interface and functions shown in this User Guide are provided for reference only and may differ from actual product appearance. [. . . ] · AdjusttheWindowsvolumecontrol--clickordouble-clickthespeakericonin the lower-right corner of your screen. Ensure that the volume is turned up and the sound is not muted. 5. 3 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. Select the Application tab, 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. User Guide 41 During the uninstall process, never directly delete the files or folders. This is harmful to the 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. If the program has its own uninstaller, run it directly to uninstall the program. If the program does not have its own uninstaller, then select Control Panel from the Start menu. From the Control Panel, choose Programs and Functions. Find the applicable program from the Programs and Functions dialog box and then select Uninstall/Modify. Perform the instructions displayed to uninstall the software. 5. 4 Troubleshooting Problems with Optical Drives and Hard Disks Problem: The Optical drive is unable to read a CD/DVD. Troubleshooting and problem resolution: 1. Check to determine if there is an optical drive icon in the resource manager of the operating system. If there is still no icon, contact Lenovo Service. Otherwise, continue with the next step of this procedure. Confirm that the CD/DVD has been properly placed in the drive. Otherwise, continue with the next step of this procedure. [. . . ] This manual could include technical inaccuracies or typographical errors. Changes are made periodically to the information herein; these changes will be incorporated in new editions of the publication. To provide better service, Lenovo reserves the right to improve and/or modify the products and software programs described in the manuals included with your computer, and the content of the manual, at any time without additional notice. The manuals included with your computer are provided to help you use Lenovo's products appropriately. For the configuration of the product, refer to the related contract (if any) or product packing list, or consult the distributor for the product sales. [. . . ]