Powershell
Oh dear, you all seem to have forgotten that us techie types are not supposed to be using the UI anymore, we're all supposed to be typing in powershell commands to do everything on Windows. In fact we're not even supposed to install the UI anymore, we're supposed to be using the "core" version.
The reason it looks like a child's toy is because only the people stupid enough to not be able to memorize hundreds of powershell commands are supposed to use it.