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. Bypasses Microsoft activation using KMS protocol. Operates without internet access for activation. 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. Supports activation of both Windows and Office editions.