It might be good for Windows
In some ways, Windows 3.1, that ancient piece of crap, offered much more user choice. Take font rendering, for example. You could turn off Truetype entirely, and you had the option of enabling Type 1 and HP's Intellifont rendering if you so wished.
Likewise, no OS dependence on your choice of web browser (though the choice was Netscape, Mosaic, and perhaps Lynx, Mosaic having not yet morphed into IE).
For a while there (later than Win3.1 iirc), there were at least three different office suites comprising a word processor, spreadsheet, and database, though Harvard Graphics was nearly the only presentation manager anyone ever used.
Video and audio players and graphics software abounded, for some values of "abound".
Debundling all the bells and whistles that currently bloat Windows might (not necessarily!) force MS to get rid of the tightly coupled application-OS system they've imposed on the world in favor of proper procedural firewalls between apps and OS. If my experience is any guide, this would lead to a much more robust, more secure, more flexible system made up of modular building blocks, instead of the current everything-in-one-big-lump approach.
Why is there no gray-beard icon for old farts' postings?