Video is Not autoplaying in my laptop,but is playing with controls

#1
Document hello 
<img height="50" src="https://codingblocks.com/assets/images/cb/cblogo.png">
world

<br>

<video loop controls autoplay 
    preload="auto" src="Video.mp4"></video>
<audio loop controls autoplay 
    preload="auto"
    height="200"src="audio.mp3"></video>
#2

There might be issue with your browser compatibility also.
Please check that
You can refer