

They made an attempt. It’s called Windows RT. It’s a sandbox more locked down than iOS.
The Win32 desktop environment isn’t built to support stuff like “timer coalescing” for all the API calls which all the software is designed to run continously in the background. Changing how it idles would change so many things which all kinds of software depends on that it would barely be the same OS anymore.
It seems to think you have headphones in, not a speaker
If you’re in EU I think you need root to bypass it