To make your copy of Windows a genuine version run the Windows update tool on your computer and verify the validity of Windows. If Microsoft determines your Windows operating system to be invalid, it prompts you to activate Windows on your computer.

How to activate Windows

To activate Windows on your computer, press Windows key+I to open Settings. Or, open the Start menu and click the gear icon.

In Settings, click Update & Security.

On the left, click Activation.

If Windows is not activated on your computer, an error notification is displayed in yellow on the right. Follow the instructions and use the provided links to find the information you need to activate Windows.

If you need further assistance, refer to the official Microsoft Windows Update guide and follow the instructions.

  • Listing of Windows versions.
  • How to determine the version of Windows on a computer.
  • Microsoft company information and links.
  • See our activate definition for further information and related links.
  • Microsoft Windows help and support.