Every laptop and PC has fans built-into it. You do not have to own a high-end gaming rig or gaming laptop to have fans on your system since all of them heat up. The fans normally run faster when you boot up a system and then quiet down when startup completes. They will start running again, or running faster if you start using your system’s resources more e.g., if you have a lot of tabs open in Chrome. https://www.addictivetips.com/windows-tips/control-fan-speed-on-windows-10/