A while back, AMD and Intel made waves when they both annouced that their latest CPU chipsets (Zen and Kaby Lake, respectively) would only receive driver support for Windows 10. At the time, the speculation was that this "official" Win10 exclusivity wouldn't actually matter much, since both chipsets would probably run just fine on Windows 7 or 8.1, anway, and nobody was apparently willing to give much credence to the idea that AMD and Intel would just write off a huge chunk of their potential customer base by actively preventing users of older Windows versions from using their new chips.
People who were thinking that way, however, apparently didn't reckon with Microsoft, or with the amount of anti-consumer bullshit that Microsoft would be willing to build into its products. Because they're now actively blocking users of Windows 7 and 8.1 from using older versions of Windows on new Ryzen and Kaby Lake machines.
From PCGamesN:
It’s only frickin’ March. I find it hard to believe we haven’t even had three months of 2017 yet we’ve already seen entirely new CPU platforms from both AMD and Intel as well as a new ‘fastest graphics card ever.’ But as they announced over a year ago, Microsoft aren’t supporting the latest CPU platforms on their last-gen operating systems, suggesting anyone who wants to keep their PCs all nice and OCD updated should immediately upgrade to Windows 10.
Now that wouldn’t be a massive issue, as older operating systems were obviously not built with the intricacies of whole new chipset and CPU platforms in mind and it’s arguably more important for Microsoft to focus on ensuring good support for them with their most current OS.
All well and good. Except for the fact that reportedly AMD’s Ryzen chips seem to actually perform better on Windows 7 compared with Windows 10.
[...]
Yeah, that’s a mite awkward. But it’s okay ‘cos AMD says everything is fine, move along, nothing to see here. Windows 10 definitely isn’t having any scheduler issues with the Ryzen CCX architecture and any performance differences between the two operating systems “can be more likely attributed to software architecture differences between these OSes.”
Tom's Hardware gives more detail:
Windows 7 and Windows 8.1 users with new processors who try to scan or download updates via the Windows Update tool are greeted with one of two messages. The first is straightforward: "Unsupported Hardware [...] Your PC uses a processor that isn’t supported on this version of Windows and you won’t receive updates." The second message isn't quite as clear:
Windows could not search for new updatesAn error occurred while checking for new updates for your computer.Error(s) found:Code 80240037 Windows Update encountered an unknown error.So the company published a support article to explain that the way its new support policy was implemented means that "Windows 8.1 and Windows 7 devices that have a seventh generation or a later generation processor may no longer be able to scan or download updates through Windows Update or Microsoft Update." The company (naturally) advised users affected by this problem to upgrade from their current operating system to Windows 10.
If you planned to upgrade to Kaby Lake, AMD's Ryzen, or another new processor, then you'll also finally have to move to Windows 10. This might have been implied by Microsoft's previous statements--it has repeatedly said that Windows 10 would be the only operating system to support the new processors--but now it's clear that some people didn't get the message (hence the support article) and that "will require the latest Windows platform at that time for support" really means "you won't even be able to search for updates if you buy a new CPU without moving to Windows 10."At this point, I just want to emphasize that this new behaviour isn't being added to Windows 10. It's being added to Windows 7 and 8, products whose users bought and paid for the software, and who never agreed to only run the OS on hardware that was approved by Microsoft.
The deal was always simple -- you owned your PC, and could install any hardware in your PC that you liked, as long as you understood that your installed hardware might not all play nicely together, either with your other hardware or with Windows itself. Once again, however, Microsoft have altered the deal, and Windows 7 and 8 users can now only run hardware that Microsoft approves in advance.
Here's a thought: if they can do this with your CPU and motherboard, then what's stopping them from doing this with your GPU, too? Want a better graphics card? Better switch to Windows 10! Any kind of hardware that Windows 7/8 can detect, which is all of it, can now cause you to simply be blocked from future updates of your supposedly-supported-until-2020 operating system, purely by Microsoft's fiat.
That, my friends, is bullshit. It shouldn't be at all surprising, of course, at least to anyone who's been watching Microsoft's behaviour over the last couple of years, but it's still bullshit. That point should not be in question.
The only real question is, "Will it work?"
So far, benchmark comparisons between Intel's new Kaby Lake processors and their older Skylake ships have shown almost identical performance between the two. Some heavily hyper-threaded applications showed significant gains, so if you're a professional videographer or YouTuber who renders hours of video as a business, Kaby Lake might be worth your while, but for all other applications, including games, you may as well stick with the PC you're already using, unless it's older than SkyLake.
AMD's Ryzen benchmarks, by comparison, have been such a hot mess that AMD had to issue disclaimers, asserting that their chips ran just fine with Windows 10, really, and weren't running unusually hot, either, regardless of what your PC's onboard temperature sensors were saying. And while Ryzen benchmarks for some heavily-hyperthreaded applications looked great, most of the benchmarks that gamers and other PC power enthusiasts really care about showed no better performance than Intel's.
This is what the end of Moore's Law looks like. PC performance seems to have plateaued, with brand-new PCs quite simply not being much of an upgrade over chipsets that are years old.
If your PC is pre-dates the Obama administration, and you're needing to upgrade because everything runs terribly, and you're wanting to stay with Windows 7 or 8.1, then you have a tough choice to make. You can buy last-gen tech and get an inexpensive system that will work perfectly well for at least a few years, but which may need replacing again in a few years' time... or you can switch to Windows 10, which you've been avoiding for a number of excellent reasons, in order to get more future-proofing, and just hope and pray that Microsoft eventually pull their heads out of their collective asses. Good luck with that.
If, however, you bought a decently powerful PC relatively recently, then you're probably good. You can stick with what's working, rather than spending money on a new PC that you don't actually need, that won't perform much better than what you're already running, and that you'll have to switch to Windows 10 to use, even though everything about Microsoft's Windows 10 strategy turns you completely off.
"Will it work?" The answer depends on how many Windows 7 and 8.1 users are genuinely happy with their machines, and the extent to which they're determined to avoid Windows 10's bullshit. Given that (a) PC sales have been trending downwards for eight years, while Android has overtaken Windows as the most-used OS on Earth thanks to its utter dominance on mobile devices, and (b) Windows 7 users, in particular have shown no desire whatsoever to switch to Windows 10, I somehow doubt that this will drive Windows 10 adoption. It could, and probably will, hurt sales of Ryzen and Kaby Lake, which makes AMD's and Intel's collusion in this scheme all the more baffling, but I don't see this actually benefitting Microsoft much at all.
So, will it work? I don't think so. In fact, I'm going to stand behind my earlier prediction, and say that Windows 10's market share will continue to tick backwards next month, both in general and among Steam users, while sales of new PCs continue to decline as Microsoft's latest anti-consumer step further depresses demand for new silicon.
Place your bets!