When you finish using a program, you should exit (or quit or close) it to get it out of your way and to let Windows reclaim its memory for other use.To exit a program: Choose File > Exit (Figure 6.13 ).
Figure 6.13. Pressing Alt+F4 is quicker than choosing File > Exit.
or Press Alt+F4.or Click the program's Close button ().or Double-click its control-menu icon (at the left end of the title bar).or Right-click its taskbar button; then click Close.or Activate the program's window; press Alt+spacebar; then press C.