Solaris 10 with the SUNWCxall metacluster plus tons of self-compiled, linked and packaged software. If you want to do programming, Windows is totally the wrong operating system for that: it's slow, bloated, vulnerable to viruses and the tools like Visual Studio are designed to dumb you down as programmer as much as possible under the pretense of productivity. You can probably get some use out of running the Linux subsystem for Windows, it will have lots of programming tools like AWK, ksh, flex, bison, make, m4, php, maybe even Steel Bank Common Lisp...
My second choice would be a Mac with macOS. I personally haven't seen anyone in past ten years or perhaps more using Windows, let alone for programming at any businesses I worked at. Whereever I went, everybody's using Macs with macOS to do development. Is Windows even still a thing, or are you looking to explore Windows programming as a curious hobby past-time?