I bought a Windows 10 Home 32/64bit × 1 $119.99 NZD from Software City NZ 28 Nov 2017 .
I have used it several times on an Intel NUC to re install, today it won't accept my key, been in touch with Microsoft and they have told me its a pirate copy!. And to go back to my supplier which is no more.
So I guess i'll have to another licence which is a bummer.