Change wallpaper in Windows 7 Starter edition can be done easily, but we should have any applications or softwares to do it. Win 7 Starter has less features, it is usualy used on a netbook. Because the spesification of netbook to be installed the advanced version of Windows seven is too weak. These below provide two softwares to change Win 7 wallpaper or background.

1. Starter Wallpaper Changer: it is a small program just 40KB, please download and double clicks it to change your wallpaper. Download from here.
2. Starter Background Changer: this program will add menu on the desktop, it is "Personalize". It is the menu to change the background of Win 7 in general except Starter and Home Basic. With this application we can change wallpaper, screen saver, sound, and colour. Download it freely from here.

May be useful.