Hello, my name is Marco and I will do my best to help you.
One of the easiest ways to create a slideshow from multiple folders is to use a third-party application. Applications like IrfanView, XnView, or FastStone Image Viewer allow you to create slideshows from images located in multiple folders.
Windows Media Player can also be used to create a slideshow with images from multiple folders.
Steps Using Windows Media Player:
Open Windows Media Player: Launch Windows Media Player.
-Go to the Library tab.
-Right-click on Playlists and select Create playlist.
-Name your playlist.
-Drag and drop images from different folders into the playlist.
-You can drag and drop the images within the playlist to arrange them in the desired order.
-Click Play to start the slideshow.
If you have Microsoft PowerPoint, you can create a slideshow by importing images from multiple folders.
Steps Using PowerPoint:
-Launch Microsoft PowerPoint.
-Start a new blank presentation.
-Go to the Insert tab.
-Click Photo Album > New Photo Album.
-Click File/Disk to select images from different folders.
-You can rearrange the images within the Photo Album dialog.
-Click Create to generate the slideshow.
-Press F5 to start the slideshow.