1. Executive Summary Objective: To document the legitimate methods for activating Microsoft Office 365 (now Microsoft 365) using Command Prompt (CMD) and the Office Licensing Tool ( OSPP.VB ).

C:\Program Files\Microsoft Office\Office16> cscript ospp.vbs /inpkey:N9KXK-6YJ7Q-TJK6V-3B7F7-CF4X3 Product key installed successfully.

| Activation Type | Description | CMD Applicability | |----------------|-------------|--------------------| | | User signs in with a licensed Microsoft account; activation is digital and automatic. | Minimal – CMD cannot replace login. | | Volume Licensing (KMS / MAK) | For organizations with multiple devices. Uses KMS host or MAK keys. | Full CMD support via ospp.vbs . |