When I start my laptop it starts to get loud after a few seconds. And that goes on until I shut down my laptop again, I've tried everything except for my fan, I'm not sure if that's the reason for it now.
That guarantees the fan, clean or replace.
Or measure the temp with HWinfo or AIDA or similar.
but it is primarily a fan problem.
Go to the bios and set the fan to silent or something similar
Will that help?