The picture is not changed. Open the picture-in-picture window on the Win7 desktop

        Many users like to use a variety of beautiful pictures to make desktop wallpapers. If there are too many good pictures to choose from, you can also use Win7 desktop slides to switch multiple wallpapers. If you still don't feel addicted, okay, then teach you a way to make "Picture in Picture" on the Win7 desktop. It can be done with a desktop widget from Win7.
Right click on the Win7 desktop to open the "Gadgets" window.

Double-click on "Slide Show" to add this gadget to your Win7 desktop.

The newly added Slide Show window may be smaller. Click the Zoom In button on the right side of the show window to enlarge it.

Right click on the show window to open the "Options". In the pop-up settings dialog, we can select a directory to store the images, and set the show switch time and switch effect.
If your Win7 supports Aero desktop perspective, just move your mouse to the lower right corner of Win7 desktop, you can make all open windows on the desktop transparent, directly display desktop wallpaper and desktop gadgets, and enjoy you at any time. Like the picture.
Desktop widgets can be added in all versions of Win7, but Aero desktop perspective must be implemented in Win7 Home Premium and above. If you have Win7 Home Basic installed on your computer, you can upgrade your system by purchasing the Win7 upgrade key. The upgrade process doesn't even need to reinstall the system. Just enter the upgrade key and wait for about ten minutes.