How to quickly switch Win7 video output

Friends who use laptops know that general notebooks support multi-screen output. For example, when we are doing a demonstration PPT, we need to project the screen on the screen onto the large screen. At this time, we need to find the button to switch the screen on the keyboard. Many use the Fn function key + F2 key to switch, but due to the variety of notebooks, the method of switching screen display is also different.
If you install Windows 7 system, then switching the display mode becomes very simple. No matter what brand of notebook you are, you only need to press the Windows key + letter P key to open the output mode switching interface. Intuitive, we only need to directly click the corresponding mode with the mouse, or continue to press the Windows key + letter P key to switch directly in various modes. People who often need to demonstrate at this point are very helpful.

Windows Key+P Key Quick Switch