change wallpaper
First, determine whether the pattern to be set as the desktop is on the computer or on the network. Of course, the patterns on the network can also be saved to the computer first, but it is also possible to set them directly as the desktop. If you are from a computer, open the picture, right-click and select Set as Desktop Background. Same as above on the Internet, just open the pictures on the Internet.
If the picture can just be set as the desktop, there is no need to make other settings. If the sizes do not match, you can right-click on the desktop and select Properties, and select "Location" in the desktop options. There are three options: tiling, centering and stretching, which can be selected according to your preference.
Desktop wallpaper file location
If you want to delete the default picture in the desktop properties, you can find it in the computer C:\WINDOWS\Web\Wallpaper, or you can put the downloaded wallpaper in this folder, and the wallpaper will be automatically added to the desktop properties.