Alt + Enter = Properties: (for a Selected Drive, Folder or File etc).
Alt + Space = Minimize a Window to the Task Bar.
Tab = Cycle Through Text Boxes, Drop Down Lists, Check Box Sections, Radio Buttons etc.
Alt + Tab = Cycle Through all Your Running Programs and Will Maximize the one you Select.
Alt + F4 = Close a Program or Windows.
Alt + Underlined Letter (on the menu bar) = Press the Underlined Letter on the Drop Down Menu.
Ctrl + C = Copy Selected Text to the Clipboard.
Ctrl + P = Print (From Within a Program).
Ctrl + S = Save (From Within a Program).
Ctrl + V = Paste Text from the Clipboard to a Program.
Ctrl + X = Cut Selected Text to The Clipboard.
Ctrl + Z = Undo.
Ctrl + Esc = Start Button.
Ctrl + Tab = Move Through the Tabs on a Dialog box.
Enter = Activates the Default Button (Usually the OK Button).
Esc = Activates the Cancel Button and Makes the Dialog box Disappear.
Arrow Keys = Use Them to Make Selections in a List Box.