In Windows 8, when File Explorer is launched via the Taskbar shortcut, Libraries are shown by default. This is useful if you actually use the Library feature but many prefer the traditional behavior of My Computer where the drives are listed instead.
This behavior can changed by editing the shortcut target. Right click on the taskbar icon for File Explorer.
Then, right click on File Explorer listing and select Properties.
Change the target of the shortcut to the following:
Click OK and say hello to the classic My Computer drive list.