Problem with rendering a video

I have a 55 ish minute video I want to render (Settings: 720p, 50 fps, low quality) but at around the 10 or 15 minute mark of rendering the video, something goes wrong and messed up everything, like any other app I have open (inluding something like file explorer) I had a brower open and it completely turned that whole window black, then I alt f4-ed everything and by wallpaper had turned black, then my whole laptop crashed and the only thing I could see was my cursor, so I force shut down my laptop and started it again and tried to render it again but the same thing happened, so what do I do?

I've attached a screenshot I could get after the 2nd time I tried to render