answer:IrfanView (irfanview.com) is free, easy to use and has a slew of features, including a pretty simple and straightforward way to make slide shows. If I recall correctly (since I haven’t used the slide show feature), I think you can make slide shows that will run either manually or unattended, and in loop mode if you want. Did I mention that it’s free? One feature of IrfanView that I have used frequently is its capability to make contact sheets of thumbnails of your photos, which would be good handouts for various presentations.