What I know about W10 could be written on the back of the proverbial postage stamp, given that I only fire up the W10 VM when I need to test something.
VirtualStore is not new in W10 - W7 has it and so I assume W8 as well. The VirtualStore W10 behaviour is odd, because as I understand it, it's supposed to operate fairly seamlessly to avoid precisely the sorts of problems that are occurring in W10. I suspect only a minor glitch that Steve could fix if he was still around.
If you manage to locate a Windows programmer, any chance that we might see Print Tool for Windows one day?