Can someone help me figure out what exactly might be causing this?

Video link: https://we.tl/t-SgZEgTGouR

This started some time ago. Sometimes, when the laptop turns on, this weird loud buzzing sound comes starts. I need to put it to sleep or shutdown and restart for it to stop. Hitting it sometimes helps, but I don’t try that often cuz… well… hitting.

Laptop: HP Pavilion 15, has an nvidia mx150 graphics card as well.

Thanks!