The Windows 7 machine is only for gaming / steam, I never browse the internet on there and have pretty strict firewall ruleset. To be honest, I would consider upgrading it to 10, but I missed the free window, so I really don't fancy paying for it.
My hope is that by the time that Windows 7 goes EOL, I can delete it and game just on Linux. Either that or I will get a console (as most of my gaming takes place in my living room anyhow, using a steam box).