If the process is successful, you will see a response in the command prompt window that includes:

""

You can verify the status by opening any Office application (like Word or Excel), going to File > Account, and checking the activation status.

Once the key is installed and the server is set, execute the activation command:

cscript ospp.vbs /act

Please read carefully: Using CMD scripts to activate Office is legitimate only if you possess a valid license. The methods shown above are Microsoft-supported commands (ospp.vbs is a genuine Microsoft script). However:

Violating Microsoft’s licensing terms can lead to legal penalties, software audits, and security risks (malware-laden activators).

For testing or learning, Microsoft offers free Office LTSC evaluation copies (30 days). After evaluation, you must uninstall or purchase a license.

Solution: Your MAK key may have exceeded its activation limit or is invalid. Contact your license provider.

If you are a home user without a volume license, consider Microsoft 365 Family or Office 2021 Home & Business (retail). They are easier to activate via Microsoft Account. Only use LTSC if you explicitly need a non-subscription, volume-licensed edition.

If you are an IT professional, memorize the ospp.vbs commands—they are invaluable for remote deployments, troubleshooting, and scripting.

Si tienes dudas sobre si se activó correctamente, puedes ejecutar este comando para ver el estado de la licencia:

cscript ospp.vbs /dstatus

Aquí podrás ver la fecha de expiración y el tipo de licencia. Recuerda que las activaciones KMS suelen tener una duración de 180 días, tras lo cual el sistema intenta renovar automáticamente si el servidor sigue activo.