To increase your MAK activation limit, please contact your Microsoft Activation Center.
Why MAK activations do no match the number of licenses: Since there are many benefits to using KMS as the preferred activation method. KMS being the primary method of activation is one of the reasons we do not match the amount of licenses and activations on a MAK, as the MAK may not be used. Microsoft looked at many different factors to determine the number of activations associated with each MAK, including licenses purchased, the customer purchase pricing level and Volume Licensing program.
For Open License customers, we look at the amount of licenses they have and usually give them more than what may be needed to ensure activations are available for scenarios such as reactivations, virtual machine licensing rights. For example, if a customer purchases between 1-25 licenses, they may get 50 activations on their MAK. For Select, Enterprise Agreement, Campus Agreement, School Agreement and SPLA we look at the pricing levels (A, B, C, D) and give a specific amount of activations per level based on the general amount of licenses purchased per level. We also take into account KMS being the predominant activation method to be used.