The machines are all current generation (Skylake) and support both Windows 7 and Windows 10. If your professional workflow depends on a Windows app, this is your last chance to buy a Win7-compatible machine that will be supported until 2020. At any time, you can upgrade to Win10 with the included OEM license.
Isn't Microsoft backporting all the same crap -- forced updates, forced reboots, telemetry, and other assorted asshattery -- to Windows 7 and Windows 8?
It seems like the first thing you'd have to do with a new Windows 7 system is turn off Windows Update, to keep the camel's nose, head, humps, legs, tail, and extended family out of the proverbial tent.