Try one of these guides to see if one is similar to your toshiba.
Toshiba satellite laptop fan noise.
The cpu fan was constantly running and things were staying hot.
I m sure one is available to purchase.
Instead of a gentle whir it was really loud.
First see if anything is using a lot of cpu via task manager.
See if any processes can be.
To make the fan quieter first try cleaning off any dust or grime to make sure that the fan can run easily.
If the fan is still too loud you can change the fan speed using the bios basic input output system menu.
This particular model is a toshiba satellite.
To make the fan quieter first try cleaning off any dust or grime to make sure that the fan can run easily.
I was having the same problem on my toshiba satellite laptop after the win 10 anniversary update.
After taking the back off there are screws hidden beneath the pads closest to the hinge i figured out that although the fan was clean it would sometimes hit against the fan housing when it spun at certain speeds.
Toshiba satellite ultrabook u940.
Your toshiba laptop uses a cooling fan to prevent the laptop from overheating but the fan can be noisy.
If the fan is making a lot of noise but it only sounnds like it is working hard you can try three things.
Also checkout this forum on loud toshiba fans.
I was having that problem also.
It will help you to get to the fan.
Your toshiba laptop uses a cooling fan to prevent the laptop from overheating but the fan can be noisy.
This will over work your cpu and thus your fans.