1.Drag the windows task bar from bottom to right.
2.Double click the Emacs title bar to max it.
3.Click the Emacs task button on windows task bar to minimize the Emacs window.
4.Reclick the Emacs task button on windows task bar to max it.
5.The Emacs widdow's right boder has been go in to the windows task bar. It should be close to the windows task bar.