| | Best For | Requires Internet | | --- | --- | --- | | KMS | Large on-prem networks, air-gapped environments | Only for host activation | | MAK (Multiple Activation Key) | Smaller volume deployments | Per activation | | Active Directory-Based Activation (ADBA) | Domain-joined PCs without KMS host | No | | User-Based Subscription | Roaming users, hybrid work | Yes (periodic) | | Cloud Trust | Modern managed devices (Intune) | Yes |
KMS is perfect for large enterprises that want to reduce internet bandwidth and maintain activation control behind their firewall.
setup.exe /configure configuration.xml
Used for perpetual Volume Licensed products (e.g., Office Professional Plus 2024).
and must be renewed by connecting to the host at least once every 180 days. Microsoft Learn KMS vs. Microsoft 365 Subscriptions microsoft office 365 kms
Access denied. (Resolution: The command prompt was not opened with administrative privileges). Summary Configuration Checklist Responsibility Key Elements KMS Host Server Hosts the Master DB
Open an elevated Command Prompt and navigate to the Software Protection Service or use the Volume Activation Tools wizard. | | Best For | Requires Internet |
Instead of each computer activation happening online, a central server (the KMS Host ) activates the machines.
Install the Office CSVLK using the standard script interface: cscript slmgr.vbs /ipk Use code with caution. Activate the KMS host online with Microsoft: cscript slmgr.vbs /ato Use code with caution. Step 2: DNS Configuration for Auto-Discovery Microsoft Learn KMS vs
KMS uses for communication between clients and the host. This port must be open on all firewalls between client computers and the KMS host. Additionally, stateful traffic to the KMS client must be allowed through routers and other network devices.