User manual LENOVO B450

[. . . ] Lenovo B450 User Guide V1. 0 Notes · Before using this information and the product it supports, be sure to read Important safety information on page iii and Notices in Appendix E first. · Some instructions in this guide may assume that you are using Windows Vista®. If you are using other Windows operating system, some operations may be slightly different. If you are using other operating systems, some operations may not apply to you, but it won't substantially affect your use of this computer. [. . . ] If a computer is close to such an appliance, and is exposed for an extended time to air containing negative ions, it may become electrostatically charged. Such a charge may be discharged through your hands when you touch the keyboard or other parts of the computer, or through connectors on I/O devices connected to it. Even though this kind of electrostatic discharge (ESD) is the opposite of a 59 Appendix B. Use and care information discharge from your body or clothing to the computer, it poses the same risk of a computer malfunction. Your computer is designed and manufactured to minimize any effects of electrostatic charge. An electrostatic charge above a certain limit, however, can increase the risk of ESD. Therefore, when using the computer close to an appliance that can produce negative ions, give special attention to the following: - Avoid directly exposing your computer to the air from an appliance that can produce negative ions. - Keep your computer and peripherals as far as possible from such an appliance. - Wherever possible, ground your computer to facilitate safe electrostatic discharge. Notice of static-electricity When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricity damage: - Limit your movement. Handle adapters, memory modules, and other circuit boards by the edges. Use and care information - When you install a static-sensitive option or CRU, touch the staticprotective package containing the part to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two seconds. - Whenever possible, remove the static-sensitive part from the staticprotective packaging and install the part without setting it down. When this is not possible, place the static-protective packaging on a smooth, level surface and place the part on it. - Do not place the part on the computer cover or other metal surface. Be gentle with your computer · Avoid placing any objects (including paper) between the display and the keyboard or under the keyboard. · Do not drop, bump, scratch, twist, hit, vibrate, push, or place heavy objects on your computer, display, or external devices. · Avoid turning the display beyond 150°. Carry your computer properly · Before moving your computer, be sure to remove any media, turn off attached devices, and disconnect cords and cables. · Be sure your computer is in sleep or hibernation mode, or turned off, before moving it. This will prevent damage to the hard disk drive and data loss. 61 Appendix B. Use and care information · When picking up your open computer, hold it by the bottom. · Use a quality carrying case that provides adequate cushion and protection. Do not pack your computer in a tightly packed suitcase or bag. For outdoor use · Backup your critical data before you take your computer outdoors. · When you leave the computer in your car, place it on the back seat to avoid being insolated. [. . . ] These operations, however, only change the file allocation of the data; they do not delete the data itself. In other words, the data retrieval processing is disabled under an operating system such as Windows. Thus, it is sometimes possible to read the data by use of special software for data recovery. There is a risk that people of bad faith may read and misuse the critical data on hard disks for unexpected purposes. [. . . ]