If you bought your PC from a manufacturer, the manufacturer, not Microsoft, must provide you a product key.)īuying a digital copy of Windows 10 from an authorized retailer.Product key A digital license will be given to your device for Windows 10 based on the valid product key you entered. If you got Windows 10 by… Activation methodUpgrading to Windows 10 for free from an eligible device running a genuine copy of Windows 7 or Windows 8.1.Digital licenseBuying genuine Windows 10 from the Microsoft Store and successfully activated Windows 10.Digital licenseBuying a Windows 10 Pro upgrade from the Microsoft Store and successfully activated Windows 10.Digital licenseBeing a Windows Insider and upgrading to the newest Windows 10 Insider Preview build on an eligible device that was running an activated earlier version of Windows and Windows 10 Preview.Digital licenseBuying a copy of Windows 10 from an authorized retailer.Product key

Try to remember how you purchased your Microsoft software, which determines where you need to look to find the product key.įind the table below to understand which method you might have chosen.

Office 365 keeps asking for activation