LOL I do the same thing -- brain damage the UI back to Win 2000 Classic look and feel.
Unfortunately, we're screwed for the future -- Microsoft hates that we do that, and has made it impossible unless you get a third-party package of some sort, and they have other issues of non-compatibility with certain applications, etc.
Ultimately the only choice may be to convert to another operating system that gives you more of what you want in a UI. Linux and OSX both have their adherents... But there we verge off into religious arguments... I don't go there. :-)
apparently their philosophy is that it’s better to be complaint with a few obscure applications that very few people use, than it is to give the people what they actually want- Why not simply rewrite the applications to be compliant with the operating system in the first place? I get so tired of constantly having to relearn crap that should be standard operating procedure - it should be universal- give the people a choice about which style they like- and form applications to conform to these standard universal values-
Instead they have to be a pain In the neck and force the people/users/customers to conform over and over and over again- They can not leave something that is unbroken alone- they constantly have to muck with it- much to the aggravation of most everyone who uses it-
BTW, Linux (Ubuntu) drifted off in the weeds too with its unity GUI.