Defining cipher suite has no effect

I have a windows 7 machine on which I made the necessary steps to enable the use TLS1.2 in order to be able to connect to azure and nuget mainly.

here is some of the ressources I used:

The only thing is, when I setup cipher suites (no matter how), the standard cipher suites keep being used instead of the ones I defined (in group policy, directly in the registry….)
I was able to see that with Wireshark.

I also modified the relevant registry keys for the .net framework so that tls 1.2 would be used by default.

Any idea of what I could be missing ?