General Folder/Shortcut Control:
F4: Selects the Go To A Different Folder box and moves down the entries in the box (if the toolbar is active in Windows Explorer)
F5: Refreshes the current window.
F6: Moves among panes in Windows Explorer
CTRL + G: Opens the Go To Folder tool (in Windows 95 Windows Explorer only)
CTRL + Z: Undo the last command
CTRL + A: Select all the items in the current window
BACKSPACE: Switch to the parent folder
SHIFT + click + Close button: For folders, close the current folder plus all parent folders
Windows Explorer Tree Control:
Numeric Keypad *: Expands everything under the current selection
Numeric Keypad +: Expands the current selection
Numeric Keypad -: Collapses the current selection.
RIGHT ARROW: Expands the current selection if it is not expanded, otherwise goes to the first child
LEFT ARROW: Collapses the current selection if it is expanded, otherwise goes to the parent
Properties Control:
CTRL + TAB/CTRL + SHIFT + TAB: Move through the property tabs
Accessibility Shortcuts:
Press SHIFT five times: Toggles StickyKeys on and off
Press down and hold the right SHIFT key for eight seconds: Toggles FilterKeys on and off
Press down and hold the NUM LOCK key for five seconds: Toggles ToggleKeys on and off
Left ALT + left SHIFT+NUM LOCK: Toggles MouseKeys on and off
Left ALT + left SHIFT+PRINT SCREEN: Toggles high contrast on and off