When you upgraded from a previous version of Windows or receive a new computer preinstalled with Windows 10, what happened is the hardware (your PC) will get a digital entitlement, where a unique signature of the computer will be stored on Microsoft
Activation Servers. The Windows 7 or Windows 8 genuine license you were previously running will be exchanged for a diagnostics key.
Anytime you need to reinstall Windows 10 on that machine, just proceed to reinstall Windows 10. It will automatically reactivate.
You will prompted to enter a product key a couple times through the installation, click I don't have a key and Do this later.
There is no need to know or get a new key, but if you have issues with Digital Licensing or the Activation Troubleshooter,
you can utilize an existing Windows 7 or Windows 8/8.1 product key you already ownto
reactivate if necessary. or use the reset function in Windows 10.
Best, Andre Windows Insider MVP MVP-Windows and Devices for IT twitter/adacosta groovypost.com
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