... and most recovery partitions are no use whatever, anyway. If the hard drive dies, you can't get at Drive D any more than you can get at Drive C.
When I was in the process of buying a new computer, I stipulated that I wanted the installation software on a CD, not a partition. They provided a CD, all duly labelled as Microsoft Genuine, etc.
Years later, when I needed it, it turned out that the CD was a dud. By then, it didn't matter because I had another new PC with a genuine CD. I used the code on the label of the "dud CD" one.