open My Pictures - under Picture Tasks, click View As A Slideshow
Press these keyboard keys To do this
Left Arrow, PAGE UP, or Up Arrow
Go to the previous image in this folder.
Right Arrow, PAGE DOWN, or Down Arrow
Go to the next image in this folder.
Rotate the image by 90 degrees clockwise.
Rotate the image by 90 degrees counter-clockwise.
Switch between playing and pausing the slide show.
Go to the next image.
Exit the slide show.
Turn the slide show toolbar on or off.
Note: If none of the pictures or only one picture is selected, all of the pictures will be shown in the slide show. If two or more pictures are selected, only those pictures will be shown in the slide show.