Re: Finally.
Personal computers as a pre-built consumer product are about 40 years old. Some of us actually owned a computer back then. The Rejects of Redmond conveniently forgets that some of us have owned a computer from before MS-DOS existed. We have a pretty good idea of how an OS should work and Bloatware as a Disservice is not it.
First, keep the interface clean. Second keep the location of menu items logically consistent. Third group items that belong together together. Fourth drop the addons like Cortana that many will not use from deep integration into the OS; they should be easily removed. Firth pay attention to human anatomy and how the device the OS resides on will be used, touch screens on many devices is stupid and always will be stupid. The OS should make using the computer relatively easy to use and should have UI consistency from release to release.