As the title states, is there a way? Obviously if I had a retail/OEM Win 10 key I would just use the old fashioned way as it was used for 7-8.1 but that's not the issue sadly. Magical Jelly Bean Keyfinder finds a key, but I doubt that's actually the one I should save?
Should be possible with license bound to MS Account. HWID based licenses do not rely on keys, the system uses a dummy retail key.