Funny enough, no they don’t all have enterprise level support from Microsoft. Hell the ones that do don’t use it, at the scale you are talking about you likely have the same or better support internally.
I don’t understand why you think that you can even get Microsoft support for 7 at this point?
That’s because those banking institutions have enterprise level support that they pay for yearly from Microsoft.
You do not.
Or they’re firewalled off. Or not on the network at all.
Funny enough, no they don’t all have enterprise level support from Microsoft. Hell the ones that do don’t use it, at the scale you are talking about you likely have the same or better support internally.
I don’t understand why you think that you can even get Microsoft support for 7 at this point?
Businesses, especially banks, have different rules. Banks are still getting security updates for their systems running Windows XP (generally ATMs).
A bank isn’t some run of the mill business and banks always have special relationships with Microsoft.