The absence of a Genuine Microsoft label does not indicate that the preinstalled Windows version is not
genuine. For details on how to tell whether your preinstalled Windows product is genuine, refer to the
information provided by Microsoft at
https://www.microsoft.com/en-us/howtotell/default.aspx.
There are no external, visual indicators of the Product ID or Windows version for which the computer is
licensed. Instead, the Product ID is recorded in the computer firmware. Whenever a Windows 10 product is
installed, the installation program checks the computer firmware for a valid, matching Product ID to complete
the activation.
In some cases, an earlier Windows version might be preinstalled under the terms of the Windows 10 Pro
license downgrade rights.
Call Lenovo
If you have tried to correct the problem yourself and still need help, you can call Lenovo Customer Support
Center.
Before you contact Lenovo
Prepare the following before you contact Lenovo:
1. Record the problem symptoms and details:
• What is the problem? Is it continuous or intermittent?
• Any error message or error code?
• What operating system are you using? Which version?
• Which software applications were running at the time of the problem?
• Can the problem be reproduced? If so, how?
2. Record the system information:
• Product name
• Machine type and serial number
The following illustration shows where to find the machine type and serial number of your computer.
Chapter 7. Help and support 41