Restart windows without restarting your PC

If u Install An Appz And Ask For Reboot Just Use This And U Can Use Ur Appz Without Restartthis works both with windows vista and xp.so heres the trick..Vista:Select Start, then hover over the right arrow that is to the right ofthe padlock icon until the pop-up menu appears that contains “restart”as one of it’s choices. Hold down the SHIFT key while clicking on the“restart” choice.