I've seen this post and this other one. The list goes on.
However, I need to install MinGW (preferably the latest version) in a Windows machine which is purposefully isolated from the internet. The purpose is to use soem features of Matlab 2018b that require a compiler. I can upload files to it within some restrictions, but I can neither use the default MinGW installer, nor can I use the "Get Add-On" menu command.
By the way, the machine works with windows server.
How can I get an installer or a set of files that would allow me to install MinGW?