Ah, I think you typo'd in the OP: you mentioned Windows 10, then when I asked about you mentioning Windows 10, you started talking about Windows 7
Isn't Microsoft's opinion regarding Skylake support pretty much irrelevant? I'm pretty sure that MS doesn't design drivers for Intel hardware as a general rule. Would it even matter if MS refused to approve WHQL Intel drivers for Win7 (which I doubt they would do as they're not in the habit of pissing off Intel)?
Is MS somehow "supporting" my parents' ancient nforce 5 chipset Vista box? Did they ever?
To my understanding of the situation, it's a complete non-story, and the real story (if there's one at all) is "MS continues to throw FUD to discourage users from running Win7".