The principle is very simple: The key will be verified by the Microsoft activation server then activate the system. What's the Difference between Windows Key Activation and Software Activation ?Īctivation with a key has a formal activation term called 'MAK' activation, which is one of two bulk activation methods for authorized customers. Therefore it is ensured that the customer is paying for that software product. It is a method to protect the copyright of the software. In order to activate the software you usually enter the key. Used to prove that the copy of this program is the original version. It usually comes with software programs like adobe products or operating systems like windows, but what is the significance of product key?Ī product key is a software-based key for a particular computer program. Now you must have come across the word 'product key' many times and you must have seen it as a bunch of numbers that are obviously impossible to remember. A product key generator (also known as keygen) is a program that is used to create distinct product keys for other software or operating systems.