User manual LENOVO IDEACENTRE K410

[. . . ] Machine type: 10086/3109/4743 10089/1168/4744 10090/2556/4748 K430 K410 K415 IdeaCentre K4 Series User Guide Version 1. 0 2012. 02 31501096 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. Danger: Be aware of extremely hazardous or lethal situations. Attention: Be aware of possible damage to programs, devices, or data. Note: Pay attention to this important information. © Copyright Lenovo 2012. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. [. . . ] If the program does not have its own uninstaller, then select Control Panel from the Start menu. Find the applicable program from the Programs and Functions dialog box and then select Uninstall/Modify. Perform the instructions displayed to uninstall the software. 3. 4 Troubleshooting Problems with Optical Drives and Hard Disks Problem: The Optical drive is unable to read a CD/DVD. Check to determine if there is an optical drive icon in the resource manager of the operating system. Check the specifications that came with your computer to confirm that this optical drive is capable of reading this type of CD or DVD. If the CD/DVD cannot be read, replace it with a known good CD/DVD such as one that was shipped with the computer. If the known good CD cannot be read, visually check the operating side of the CD/DVD for defects. 26 User Guide Problem: The capacity of the hard disk, as indicated by the system, is less than the nominal capacity. Troubleshooting and problem resolution: For computers equipped with the OneKey Recovery feature, the system recovery feature needs to occupy some hard disk space. Further Technical Explanation: The nominal capacity of the hard disk is expressed in the decimal system, 1000 bytes. But the actual hard disk capacity is expressed in the binary system as 1024 bytes (For example, the nominal capacity 1G is 1000M, while the actual capacity 1G is 1024M). The capacity of the hard disk shown in Windows can be calculated according to the calculations in the following example: The nominal capacity of the hard disk is 40G, while its actual capacity should be: 40 x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 37G. If the Service partition of 3G - 3 x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 2. 79G is subtracted, the capacity of the hard disk shown in the system can be obtained. The capacity of the hard disk as calculated using this method may be slightly different from the actual capacity due to the rounding of totals. 3. 5 Special considerations for troubleshooting Windows Record the following information as it may be useful later when troubleshooting system problems: 1. The serial number was shipped with the computer and provided separately by the manufacturer. The drivers for this computer model only support the Windows 7 system. When you use the Windows Media Center to watch TV, be particularly attentive to the following: · Inthefollowingtwosituations, youmustre-saveachannellist: a. When you change your TV signal from digital to analog, your saved channel list for digital TV is deleted. When you want to watch digital TV again, you must create and save a new channel list. When you change your TV signal from analog to digital, your saved channel list for analog TV is deleted. When you want to watch analog User Guide 27 TV again, you must create and save a new channel list. · YoumustsettheTVtunerinputsignaltoanalogbeforeyoucanwatch Teletext programming. 3. 6 Performing Daily Maintenance Tasks Cleaning the computer components Because many of the computer components consist of sophisticated integrated circuit boards, it is very important to periodically clean the computer to prevent dust buildup. The cleaning supplies you need to clean the components include: a vacuum cleaner, a soft cotton cloth, clear water (preferably purified or distilled water) and cotton swabs. [. . . ] 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. [. . . ]