Lenovo B450 Laptop User Guide

							Appendix B. Use and care information
67
Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
An important part of owning your computer is maintenance. With proper 
care, you can avoid common problems. The following sections provide 
information that can help you to keep your computer running smoothly.
„General tips for maintenance 
1Check the capacity of your hard disk drive from time to time. If the 
hard disk drive gets too full, Windows® will slow down and might 
produce errors.
2Empty your recycle bin on a regular basis.
3Use Diskeeper Lite or the Microsoft Disk Defragmenter on your hard 
disk drive on a regular basis to improve data seek and read time. 
 To free up disk space, uninstall unused application programs.
 Clean out your Inbox, Sent, and Trash folders from your e-mail client 
program.
 At least once a week, make a point to back up your data. If critical data is 
present, it is a good idea to perform a daily backup. Lenovo has many 
backup options available for your computer. CD-RW drives and 
CD-RW/DVD drives are available for most computers and are easily 
installed.
 Use or schedule System Restore to take a system snapshot periodically. 
						

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Appendix B. Use and care information
 Update device drivers and BIOS when needed.
 Profile your machine at http://consumersupport.lenovo.com
 to keep up 
to date with current drivers and revisions.
 Keep up to date on device drivers on other non-Lenovo hardware. You 
might want to read the device driver information release notes prior to 
updating for compatibility or known issues.
 Keep a log book. Entries might include major hardware or software 
changes, driver updates, minor issues you have experienced and how 
you resolved them.
 If you ever need to run a recovery operation on your computer by 
OneKey Rescue System, see “Chapter 4. OneKey Rescue System” on 
page 28.
 If required, you can find your country’s customer support center at the 
following Web address: http://consumersupport.lenovo.com
. 
When calling the customer support center, please make sure you have 
your machine type, model, and serial number available and the 
computer is in front of you. Also, if the machine is producing error 
codes, it is helpful to have the error screen on or the message written 
down.
Note:Always take a system snapshot before installing new drivers, updating 
software, or installing new software. 
						

							Appendix B. Use and care information
69 „Cleaning the cover of your computer
Occasionally clean your computer as follows:
1Prepare a mixture of a gentle kitchen-use detergent (one that does not 
contain abrasive powder or strong chemicals such as acid or alkaline). 
Use 5 parts water to 1 part detergent.
2Absorb the diluted detergent into a sponge.
3Squeeze excess liquid from the sponge.
4Wipe the cover with the sponge, using a circular motion and taking 
care not to let any excess liquid drip.
5Wipe the surface to remove the detergent.
6Rinse the sponge with clean running water.
7Wipe the cover with the clean sponge.
8Wipe the surface again with a dry, soft lint-free cloth.
9Wait for the surface to dry completely and remove any cloth fibers 
from the computer surface.
Note:Shut down the computer and then disconnect the power cord before cleaning 
the computer. 
						

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Appendix B. Use and care information
„Cleaning your computer keyboard
1Absorb some isopropyl rubbing alcohol on a soft, dust-free cloth.
2Wipe each keytop surface with the cloth. Wipe the keys one by one; if 
you wipe several keys at a time, the cloth may hook onto an adjacent 
key and possibly damage it. Make sure that no liquid drips onto or 
between the keys.
3Allow to dry.
4To remove any crumbs and dust from beneath the keys, you can use a 
camera blower with a brush or cool air from a hair drier.
Note:Avoid spraying cleaner directly on the display or the keyboard. 
						

							Appendix B. Use and care information
71 „Cleaning your computer display
1Gently wipe the display with a dry, soft lint-free cloth. If you see a 
scratchlike mark on your display, it might be a stain transferred from 
the keyboard when the cover was pressed from the outside.
2Wipe or dust the stain gently with a soft, dry cloth.
3If the stain remains, moisten a soft, lint-free cloth with water or a 50-50 
mixture of isopropyl alcohol and water that does not contain 
impurities.
4Wring out as much of the liquid as you can.
5Wipe the display again; do not let any liquid drip into the computer.
6Be sure to dry the display before closing it. 
						

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Appendix C. Lenovo limited warranty
This Lenovo Limited Warranty applies only to Lenovo branded hardware 
products you purchased for your own use and not for resale. 
This Lenovo Limited Warranty is available in other languages at 
www.lenovo.com/warranty
.
„What this warranty covers
Lenovo warrants that each hardware product that you purchase is free from 
defects in materials and workmanship under normal use during the warranty 
period. The warranty period for the product starts on the original date of 
purchase specified on your sales receipt or invoice unless Lenovo informs 
you otherwise in writing. The warranty period and type of warranty service 
that apply to your product are designated below under the section titled 
“Warranty information.”
THIS WARRANTY IS YOUR EXCLUSIVE WARRANTY AND REPLACES 
ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, 
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR 
CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A 
PARTICULAR PURPOSE. SOME STATES OR JURISDICTIONS DO NOT 
ALLOW THE EXCLUSION OF EXPRESS OR IMPLIED WARRANTIES, 
SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU. IN THAT 
EVENT, SUCH WARRANTIES APPLY ONLY TO THE EXTENT 
REQUIRED BY LAW AND ARE LIMITED IN DURATION TO THE 
WARRANTY PERIOD. NO WARRANTIES APPLY AFTER THAT PERIOD. 
SOME STATES OR JURISDICTIONS DO NOT ALLOW LIMITATIONS  
						

							Appendix C. Lenovo limited warranty
73
ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE 
LIMITATION ON DURATION MAY NOT APPLY TO YOU.
„How to obtain warranty service
If the product does not function as warranted during the warranty period, 
you may obtain warranty service by contacting Lenovo or an approved 
service provider. Each of them is referred to as a “Service Provider.” A list of 
Service Providers and their telephone numbers is available at 
www.lenovo.com/support/phone
.
Warranty service may not be available in all locations and may differ from 
location to location. Charges may apply outside a Service Provider ’s normal 
service area. Contact a local Service Provider for location-specific 
information.
„What your service provider will do to correct problems 
When you contact a Service Provider, you must follow the problem 
determination and resolution procedures specified.
Your Service Provider will attempt to diagnose and resolve your problem 
over the telephone, e-mail or through remote assistance. Your Service 
Provider may direct you to download and install designated software 
updates. 
						

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Appendix C. Lenovo limited warranty
Some problems can be resolved with a replacement part that you can install 
yourself called a “Customer Replaceable Unit” or “CRU.” If so, your Service 
Provider will ship the CRU to you to install.
If your problem cannot be resolved over the telephone or remotely, through 
your application of software updates or the installation of a CRU by you, 
your Service Provider will arrange for service under the type of warranty 
service designated for the product under the section titled 
“Warranty 
information.”
If your Service Provider determines that it is unable to repair your product, 
your Service Provider will replace it with one that is at least functionally 
equivalent. 
If your Service Provider determines that it is unable to either repair or replace 
your product, your sole remedy is to return the product to your place of 
purchase or to Lenovo for a refund of your purchase price.  
						

							Appendix C. Lenovo limited warranty
75 „Replacement of a product or part
When the warranty service involves the replacement of a product or part, the 
replaced product or part becomes Lenovo’s property and the replacement 
product or part becomes your property. Only unaltered Lenovo products and 
parts are eligible for replacement. The replacement product or part provided 
by Lenovo may not be new, but it will be in good working order and at least 
functionally equivalent to the original product or part. The replacement 
product or part shall be warranted for the balance of the period remaining on 
the original product.
Before your Service Provider replaces a product or part, you agree to: 
1remove all features, parts, options, alterations, and attachments not 
under warranty service;
2ensure that the product or part is free of any legal obligations or 
restrictions that prevent its replacement; and
3obtain authorization from the owner to have your Service Provider 
service a product or part if you do not own it. 
						

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Appendix C. Lenovo limited warranty
„Your additional responsibilities
Where applicable, before service is provided, you agree to: 
1follow the service request procedures that your Service Provider 
specifies;
2backup or secure all programs and data contained in the product;
3provide your Service Provider with all system keys or passwords and 
sufficient, free, and safe access to your facilities to perform service; and
4ensure that all information about identified or identifiable individuals 
(“Personal Data”) is deleted from the product or that, with respect to any 
Personal Data that you did not delete, you are in compliance with all 
applicable laws.
„Use of personal information
If you obtain service under this warranty, Lenovo will store, use and process 
information about your warranty service and your contact information, 
including name, phone numbers, address, and e-mail address. Lenovo will 
use this information to perform service under this warranty and to improve 
our business relationship with you. We may contact you to inquire about your 
satisfaction regarding our warranty service or to notify you about any 
product recalls or safety issues. In accomplishing these purposes, we may 
transfer your information to any country where we do business and may 
provide it to entities acting on our behalf. We may also disclose it where 
required by law.