Changing backgrounds on Windows devices
- Go to settings or control panel by clicking the Notification centre.
- Select Personalization
- Desktop Background
- Choose Slideshow from the dropdown menu.
- Choose Browse. Navigate to the file of photos you want to use.
- Set the time you want the image to stay for. I generally go for about ten minutes.
- Choose a fit. This determines the picture position.
- Save changes.
- Enjoy your photos.
Surprisingly, I haven't found a way to change backgrounds on an iOS device. If you know how, let me know and I'll put the info here.
Changing backgrounds on Samsung Galaxy devices
My S5mini will only let me set a single image. Apparently later models allow a slideshow.
- Go to the Settings menu
- Select Wallpaper
- Select Lock Screen. I think this will work for Home screen as well.
- From Gallery
- Choose images by ticking the check box in the top left of the image
- Tap Done
- Pan & Zoom as needed
- Hit the Set as Wallpaper button at the bottom of the screen.
- Enjoy