And I believe it was......but why doesn't windows know that....don't they scan your computer 1st ? Isn't it supposed to check if your system is compatible ?
please see previous links for compatibility checks...
and as for why? if I could answer that, I wouldn't be working...
plenty of companies do just enough to get their drivers to work with windows and others do more, to avoid issues like this...
some manufacturers had windows 10 compatible drivers for their hardware available well before release date, others did not.
not really windows fault that your driver developer can't write decent driver code... windows can only do so much...