Why? It is because this will allow you to reactivate Windows via Activation troubleshooter when important hardware change is made. To be honest, linking the digital license to Microsoft account is crucial. Detect whether the number of devices running this copy exceeds the limit that Microsoft Software License Terms allow or not.Īfter installing a Windows system, you’ll be asked to finish the activation process: find out if your operating system (OS) is activated and linked to your Microsoft account.Verify whether your copy of Windows is genuine or not.What does activation mean? To be specific, Windows activation is used to: What Happens When Windows Is Not Activated.