Keeping the same wallpaper over a period of time is very boring and we need to change the wallpaper ourselves. This feels very irritating but there are tools that can cycle the photos added by you after the specified interval of time.
One such tool is called ScrollWall. ScrollWall is a very simple tool by which your desktop wallpaper can be changed automatically after every fixed time interval in sec, minutes or hours. You can also set it to change the desktop wallpaper at every startup. The set of wallpapers can be selected by you, from your computer, and this set can be modified whenever you want.
This is the best possible way of rotating our wallpapers added in the software as you don’t need to think either about the time or the photo to be added. Just select your best pics, add them to this tool, set the time and rest this tool will take care of.
Moreover there is no limit of adding the wallpapers to this software. Using this tool you can also set some wallpaper positions like Tile, Center and Stretch. This free tool works well on Windows XP and Vista but Win 7 is still a challenge for this.