Create a desktop background slide show in Windows 7

For users who change the desktop wallpaper often, Windows 7 introduces a cool feature that performs slide show of the pictures. You have the option of using the pictures that are provided as part of a theme in Windows or you may use your own pictures to create the desktop slide show. To create a desktop background slideshow, perform the following steps:
1. Click Start button , in the Search programs and files box, type desktop background. Click Change desktop background.
Step 1 can also be performed by right-clicking on an empty place on the desktop, clicking Personalize and then clicking Desktop Background.
2. In the Choose your desktop background window, you may choose the pictures that Windows provides or you may choose your own pictures.
To select the pictures that Windows provides, click the Picture location: list
To select your own pictures, click Browse button and select the folder that contains your desktop background pictures.
3. By default all pictures are selected. You may uncheck to remove the pictures from the slide show.
4. You may customize further by:
Changing the picture position - Click the Picture position: list. You have the following options:
Fill, Fit, Stretch, Tile, Center
Changing the time for the next picture to appear as the desktop wallpaper - Click the Change picture every: list and choose the time value.
Make random selection of pictures - Click to place a checkmark beside Shuffle to have the pictures appear in a random order.
5. Click Save changes.