Windows activation is alive and well in Windows 10. Microsoft doesn't like to talk about the inner workings of its anti-piracy software, but it's clear from testing that Windows 10 included a major change in the way activation works.



Windows product keys are almost (but not quite) a thing of the past.



With Windows 10, Microsoft has rewritten the rules for how it performs product activation on retail upgrades of Windows. The net result is that clean installs will be much easier--but only after you get past the first one.

 

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