Why is my laptop fan running loudly?

1. Check if the fan blades or intake air flow has been obstructed or blocked.
2. Make sure there is good air circulation as dirt or dust can cause the fan to run noisily.
3. Confirm whether your laptop is in a well-ventilated spot.
4. Check if the power plug adapter and your laptop power socket are working properly.
5. Identify where the noise is coming from and inspect if there are problems with the hardware.
6. Update the operating system and all relevant drivers.
7. Reduce stress on the system by closing unnecessary programs.