Is Microsoft allowed to reinstall it after every update?

No

I believe that's in sarcasm. If you uninstall the widgets bar (something called "Web Experience" IIRC) it will automatically get reinstalled upon next update. (USA based)

I got mine to perm disable not by uninstalling, but by changing the folder permissions so nothing has access.

So does every annoying choice. So, This is why I Linux. Since win2k every other MS OS has annoyed me.

Linux is getting better steadily. Still has some largish holes, like poor support for cloud storage if you're not running your own.

I recently switched to linux desktop for my home PC. Compared to my last attempt at this, the experience is still...not great. There are some awesome features, but then you run into random issues that really sour the experience.

For example, my printer randomly disables itself. There's absolutely nothing wrong with it, but I have to go into the settings and enable it before anything will print. Searching for solutions to this and the best I found was a suggestion to add a cron job that enables the printer automatically every x minutes.

I have some notes I add to every time I find an issue like that. It's a few pages long as this point.

I still don't really want to go back to Windows. They really have ruined it.