Some unscrupulous sellers do mark-up on your computer or laptop running Windows, stating that the device operating system is installed licensed. However, few of them know that Windows authentication is performed in seconds. These instructions tell you how.
Important: during the test computer must have access to the Internet.
- Click the shortcut Win + R and type in the window that opens, click cmd.
- At the command prompt, type the following command: slmgr -ato
- Wait for the window with information about the authenticity installed on the computer with Windows operating system.
So, if in the window says «Activation was successful» — in front of your computer with a licensed version of Windows. In that case, if the command signals an error, the computer is running a pirated copy of the OS.
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