Save power by using hibernation in Windows Vista

Windows Vista can use hibernation to save battery life. Microsoft tells us that Vista does not need to shut down as often as Windows XP so it goes into Sleep mode instead. The hard disk and graphic card shut down but the system memory is still active and drawing power. If you're a notebook user this is a bad thing, because it still draws power and can be a problem if the is cut off suddenly. Hibernation uses even less power and keeps files safe.