Windows Explorer Keyboard Shortcuts

END	Display the bottom of the active window
HOME	Display the top of the active window
NUM LOCK+Asterisk sign (*)	Display all of the subfolders that are under the selected folder
NUM LOCK+Plus sign (+)	Display the contents of the selected folder
NUM LOCK+Minus sign(-)	Collapse the selected folder
LEFT ARROW	Collapse the current selection if it is expanded, or select the parent folder
RIGHT ARROW	Display the current selection if it is collapsed, or select the first subfolder