When it rains, it always pours catfish. And most of the falling fish came courtesy of the App Store.
Power Nap
Do your settings in the Energy Saver pane differ from what actually happens? Learn how to use pmset to understand why, and diagnose old battery problems.
The Energy Saver pane is now such a mess that even Apple does not know how it should appear, or function.
The Eclectic Light Company 