Mit csinál pontosan ez a parancs?

Telepíti / újratelepíti a Shell Experience Host nevű alkalmazást.

"“Windows Shell Experience Host” is an official part of Windows. It’s responsible for presenting universal apps in a windowed interface. It also handles several graphical elements of the interface, like Start menu and taskbar transparency and the new visuals for your notification area flyouts–clock, calendar, and so on. It even controls certain elements of desktop background behavior, like changing the background when you’ve got it set to slideshow."