A product key is a unique alphanumeric code used to verify the authenticity of your Windows operating system. It ensures that your copy of Windows is genuine and not being used on more devices than permitted under the Microsoft Software License Terms. A typical Windows 11 product key consists of 25 characters, divided into five groups.Activating Windows 11 with a product key unlocks its full functionality and ensures compliance with licensing agreements. Without activation, users may encounter restrictions.Know more information #windows11homekey