Not sure I'd agree with that. I have a number of clients who I've built and installed machines for in their music studios. All of them were running Windows 7,

Not sure I'd agree with that. I have a number of clients who I've built and installed machines for in their music studios. All of them were running Windows 7, and it works perfectly, and suits their workflow - doesn't get in the way, and works the way they want. Some of them (not all, but some) are connected to the 'net (not something I recommend, but there you go), and a couple have now been upgraded without their consent to Windows 10. One, in particular, caused loads of problems (because of hardware and software support), and it did so right in the middle of a large project (it happened overnight, during a week of work). Anyway, for these people (and indeed my current studio PC) the answer IS "run Windows 7 forever" - until the OS is no longer supported by the DAW maker, I'm happy; everything works as it should do, and I can concentrate on making music and using an OS that I like, trust and that works. And, there's no option but to run Windows if you're running niche software such as DAWs where there's not an alternative OS to run them on.