For the record, on Win 7 Pro 64, all of my plugins work correctly as well. Though I don’t have Sonnox, I do have many, many plugins including everything from UA, Plugin Alliance, Vallhala, etc.,etc. and an untold number of “boutique” plugins plus the full array of virtual instruments in addition to Maschine, Kontrol, Euphonix Artist Series, FaderPort, 13 total PCI/PCIe cards (expansion chassis), multiple monitors including 4K, one touchscreen, RME MADI and…well, you get the point. All of this is on a single Win 7 system and super solid. So I find it to be very current and robust!
Win 10 (which I have on other systems) is fine until MS decides to push updates that may or may not break things, much like Apple these days. I am no luddite, but my Win 7 system has the reliability of a fine swiss watch and all works properly without any pushed OS updates.
Just had to give a shout-out to the old warhorse! And no offense intended to Win 10 lovers.