Remove background (Images)
PowerPoint has a feature which allows you to remove the background from an image. There are limitations such as needing a high-resolution, decent quality image and a clearly defined background/foreground, It still has many uses and can allow you to bypass the need for you to search for a 'cut-out' stock image to start with.
Inserting an Image
The first step to remove the background of an image is to insert the image you wish to remove the background from. If you are not sure how to add an image to your PowerPoint, there is a guide here.