Lenovo ThinkCentre M82 - Manual (Page 18)

Note: Some models might have a multilingual version of Microsoft ® Windows ®
operating system preinstalled. If your computer has the multilingual version, you
will be prompted to choose a language during the installation process. After
installation, the language version can be changed through the Windows Control
Panel.
Completing important tasks
After you have set up your computer, record your computer machine type, model,
and serial number. If you need service or technical support, you will probably
be asked for this information.
Shutting down the computer
When you turn off your computer, always follow the shutdown procedure for your
operating system. This prevents the loss of unsaved data or damage to your
software programs. To shut down the Microsoft Windows 7 operating system,
open the Start menu from the Windows desktop and click Shut down.
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ThinkCentre Safety and Warranty Guide