KMSPico is a tool designed to activate Microsoft Windows and Office products without needing a valid license. It works by emulating a Key Management Service (KMS) server, tricking the software into thinking it has been properly activated. People might download KMSPico to bypass the cost of purchasing a genuine license or to activate software on a system where activation is otherwise not possible. However, it’s important to note that using such tools may violate Microsoft’s terms of service and could potentially expose your system to security risks.