WinXP only connected to the projector after the desktop solution

In today's media age, the use of projectors has also increased in various households. Many users are accustomed to using WinXP system laptops to connect projectors, but because of the small size of laptops and projectors. Compatibility issues, many times when WinXP connects to the projector, only the system desktop is displayed, and the icons on the desktop disappear. Why is this? What method should I use to solve this problem?
In fact, this is because the WinXP system notebook computer will become a dual-screen display when connected to the projector, and only drag the contents of the notebook desktop to the screen. It can be displayed on the projector. The main display is displayed on the notebook and the sub display is projected on the projector. So you will see a desktop background with no icons on the projector.
Solution: By setting the projection on the projector to become the main display, instead of projecting the desktop with no icon on the secondary display.
Operating steps: First select the display you want to set, then check the box with the red oval mark, that is, use the device as the main monitor, so that your projector can project the content of the desktop with icons.

Because of the increasing number of projectors, the WinXP system is stagnant, so many times when using the projector with WinXP system, there will be various problems, so Xiaobian also recommends that you replace Win7 or above. The system, so many problems can be easily solved.