I was about to type a long comment in response to yours, but then I realized I could just link you a video[1] that goes into detail explaining all the ways in which Windows 7's UI is customizable, in ways that Win 8 onwards are simply, not.
The video is 1 hours 17 minutes long, so feel free to speed it up a little.
The video is 1 hours 17 minutes long, so feel free to speed it up a little.
Hope that helps.
Cheers!
[1] - https://www.youtube.com/watch?v=AItTqnTsVjA