KMS activators are commonly used in unofficial or unauthorized activations, and while it can offer activation without internet connectivity, it is often considered illegal and potentially harmful. Facilitates activation of Windows and Office by mimicking KMS servers. Activates products without needing an online connection. Activation expires after 180 days, requiring renewal. Legal risks: Unofficial use may violate Microsoft’s terms of service. Not ideal for continuous or commercial use due to potential risks. Can be used on various editions of Office and Windows.