If you're using MAK to activate volume licensed versions of Office 2019, you specify the key in the configuration.xml file used by the Office Deployment Tool when you deploy Office 2019 to the users in your organization. For more information, see Deploy Office LTSC 2021. If you're using MAK to activate Office LTSC 2021, you specify the key in the configuration.xml file used by the Office Deployment Tool when you deploy Office LTSC 2021 to the users in your organization. For more information, see Perform Proxy Activation. MAK proxy activation is appropriate for environments in which security concerns might restrict direct access to the internet or to development and test labs. MAK proxy activation is configured by using the Volume Activation Management Tool (VAMT). MAK proxy activation by using VAMT enables one computer with internet access to process activation requests on behalf of multiple computers. MAK independent activation is best for computers that have direct access to the internet.

MAK independent activation requires that each computer independently connect and be activated with Microsoft, either over the internet or by telephone. There are two ways to activate computers by using MAK: After Office is activated, no re-activation is required unless the hardware changes significantly. Each Office activation that uses MAK counts toward the activation limit. MAK activation requires that a MAK is installed on a client computer and instructs that computer to activate itself against those services.Įach MAK has a predetermined number of allowed activations and is based on your volume licensing agreement. Multiple Activation Key (MAK) activation is used for one-time activation through Microsoft-hosted activation services, either via the internet or by telephone. Applies to: Volume licensed versions of Office LTSC 2021, Office 2019, and Office 2016 (including Project and Visio)

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