You may want to change the Windows Update options.
Also, not much has changed since early days of computing. We know we should have a full backup of the system as we like it.
I bought my computer for work for data mining specifically. Because of the software I use, I need to stay with windows 7 Pro. My mom's computer just upgraded itself to Win10. I bought a Win10 laptop back in December and it was constantly back at the store with one issue or another. I can't afford that down time. I need stability.
However, even my desktop is popping up the "Upgrade to Windows 10 now..." bubble.
Again, for me stability is far more important than anything else.