Windows RE tools partition

[Epictetus]

Yeah, that’s true for HBS. But missing a partition which should exist by MS definition might bring trouble in the future during Windows updates. That’s what you can’t predict. 

Yes - I see that too. In my case the RE partition has been missing for at least eighteen months, maybe more, so missing through a couple of "Feature Updates" and a host of the minor ones. But as you say, no telling in the future.