Old and working well. Newer is not always better, it seems software industry is increasingly having problems with stability precisely beause they keep introducing change that a lot of people don't actually want.
Running an unsupported version of any operating system (as Windows 7 will be in 2017) is dangerous and stupid. Once you are no longer receiving security updates, you're basically leaving your front door unlocked and posting a sign pointing it out on the front lawn.
Also, if you're relying exclusively on your OS for security in 2016 then you're already in trouble, and if security updates aren't necessarily going to be about security any more anyway then there's much less reason to be concerned about whether you get them or not.
