What’s the difference between MAK and KMS Key

What’s the difference between MAK and KMS 

It’s important to know that both MAK and KMS are volume licensing methods intended for business and enterprise customers who have legitimately purchased the software in bulk.

KMS (Key Management Service) is an activation method for Microsoft products used for large organizations that need to activate many computers at once, while MAK (Multiple Activation Key) is another activation method by Microsoft that is used for smaller organizations or individual. In summary: MAK is a product key, while KMS is an activation service.

The main differences between the MAK and KMS versions are as follows:

• Activation method: The MAK version needs to enter a product key for each installation and activate it online through the Microsoft-hosted activation server or by phone. The KMS version is based on a client-server model. The client computer automatically requests activation from the KMS host computer on the local network, and there is no need to enter a product key for each installation.

• Activation validity period: MAK activation is permanent. After the software is activated, there is no need for renewal, unless the hardware changes significantly. The activation validity period of KMS is 180 days. The client computer needs to contact the KMS host computer at least once every 180 days to renew the activation status.

• Number of activation limits: Each MAK key has a predetermined number of allowed activations, which is determined according to the volume license agreement. For example, a MAK key may be allowed to activate 50 devices. KMS has no limit on the number of activations. As long as the device can be connected to the KMS server within the network, it can be activated.

• Applicable scenarios: MAK is suitable for the activation of a small number of scattered devices, such as the computers of employees on business trips, because it does not rely on the internal network and can be permanently activated after activation. KMS is more suitable for large enterprises, schools and other environments with a large number of devices, which is convenient for centralized management and batch deployment.

• Network requirements: MAK needs to be connected to the Internet or activated by phone when it is activated for the first time, and then it can be used offline. KMS requires the KMS server to be connected to the Internet when it is activated for the first time. After that, the client computer can complete the activation and renewal within the local area network without relying on the external network connection.

Using KMS servers or activation keys from unofficial sources to activate software you do not own  is a form of software piracy. Furthermore, activation tools from untrustworthy sources often pose significant security risks, including malware and viruses. For regular personal use, the safest and most reliable way is to purchase a genuine license directly from Microsoft or authorized retailers.

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