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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. Emulates a KMS server to activate Windows and Office. Activates products without needing an online connection. Requires periodic reactivation every six months. Legal risks: Unofficial use may violate Microsoft’s terms of service. May cause system instability if used for extended periods. Available for use on Windows and Office products (various versions).