Well, as way of example, this weekend Windows updated my Win10 PVR computer. After the update, my PVR app crashed. I traced it to the DVB-S driver which reported "Insufficient system resources exist to complete the api" in device manager. I uninstalled, reinstalled and got it going for the time being, but this same driver was solid under 7 and 8.1. Last week, after a Windows update on my DAW, the monitor would switch itself off after Windows booted, requiring me to un-plug and re-plug the DVI cable - I still don't have a fix, as I already have the latest driver installed. The never a problem until the update. My DAW is less than 2 years old, my video card around 12 month old (AMD) - this was not the nVidia bug, but directly related to the update. My HP laptop, which is about 12 months old got hit with the infinite reboot Win 10 update issue that was reported in the press.
Pretty poor track record to date and does not instil me with confidence. I guess I have been unlucky, but if I was doing audio full time for my main income, I would not want to run it on Win 10 until I was sure the OS and its forced updates were stable. Yes, I can disable Windows updates with the tips above, but my DAW is internet connected, partly because it makes Sonar easy to keep up to date. Missing a critical security update on an internet connected PC is not great either - damned if you do, damned if you don't. I shouldn't have to jump flaming hoops to prevent these kinds of issues.