I'm not using this as a production server but rather as a development box, and not being able to shut the thing down without entering stuff into the reason box is annoying. Can I disable that behavior?
Type gpedit.msc in RUN dialog box and press Enter.
It'll open Group Policy Editor. Now go to:
Computer Configuration -> Administrative Templates -> System
In right-side pane, look for "Display Shutdown Event Tracker" option.