I will not be posting all of the keyboard shortcuts here, just the one I use on a regular basis.
• CTRL+C (Copy)
• CTRL+X (Cut)
• CTRL+V (Paste)
• CTRL+Z (Undo)
• Windows Logo (Display or hide the Start menu)
• Windows Logo+BREAK (Display the System Properties dialog box)
• ALT+F4(Close Program) If you are not running programs, this will display the shutdown dialog)
List of the keyboard shortcuts that are available in Windows XP