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#11
Thats not entirely true. MAK keys are activated via a Microsoft Activation Server. My Windows 10 MAK key activations even get a digital license. I activate them the same way I do a retail key, its all automatically done over the internet.
Volume License keys on the other hand are usually activated by that companies KMS sever. It has a record of what keys are licensed from Microsoft by that company. And how many times that key has been used etc.
Fake KMS servers show up from time to time. They don't usually last long as thats one thing Microsoft actively goes after.