How do i time my powerpoint slide show so that theirs a 3 second time for every slide and it plays nonstop without me having to click or interfere.

first you finish the whole PowerPoint. then you go to the main toolbar and click on "slide show". Then scroll down to slide transition and click. Then a box will pop up and a section called "Advance" will be on the bottom left hand side. you unclick mouse click, and you click on "automatically after" then you change the time to 0:03 and press apply to all.