<ul><li>Activating Windows with a product key is an essential step to ensure your system is legitimate, secure, and has access to all the latest updates and features.</li><li>Activation validates that your copy of Windows is genuine and has been legally licensed.</li><li>To activate Windows, you need a valid 25-character product key which can be obtained from a new PC, a retail copy of Windows, a digital purchase from Microsoft Store, or by contacting Microsoft support.</li><li>If you encounter any issues with activation, Microsoft provides troubleshooting tools and customer support to assist you.</li></ul>

How to Activate Windows with a Product Key

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