Laptops

Laptop overheating and loud fan

Laptop overheating or fan always loud? Safe cleaning, airflow, power settings and updates, and when it needs an internal cleaning.

Difficulty: Easy
Time: 15-30 min
Steps: 7
Updated: 2026-10-19

Sounds like this?

Fan roars constantly
Bottom or keyboard too hot to touch
Laptop slows down when hot
Shuts off during games or video calls

Step by step

Check what's using power: Task Manager (Windows) or Activity Monitor (Mac). Close heavy apps and browser tabs.
Put the laptop on a desk or a laptop stand to raise the back and let air in.
Shut down, unplug, and blow short bursts of compressed air into the vents, holding the can upright.
Update the BIOS/firmware and drivers through your maker's update app; fan behavior is often improved there.
Set Power mode to Balanced instead of Best performance for everyday use.
Check for malware if the CPU is busy while you're doing nothing.
A cooling pad can help for gaming laptops.

Related error codes & messages

Quick answers

When should I stop and get professional help with "Laptop overheating and loud fan"?

Stop and get help if: It shuts off from heat even when idle. The fan clicks, grinds or doesn't spin. The laptop is over 3-4 years old and has never been cleaned inside. Internal dust and dried thermal paste need a pro cleaning. The case is bulging (possible swollen battery). Boise Computer Care can diagnose it for a $60 fee; call 208-996-3508.

How long does this fix take and how hard is it?

Plan on 15-30 min. Difficulty: Easy.

Is it safe to try this myself?

Mostly, if you follow these precautions: Use the laptop on a hard, flat surface. Beds, pillows and laps block the vents. Don't spray compressed air into a spinning fan; hold the fan still with a toothpick through the vent, or the fan can be damaged. Shut down and unplug before cleaning vents.

Which error messages or codes does this guide cover?

CPU fan error, Thermal shutdown, System fan (90B).

Still stuck?

Ask Fyx365 AI

Describe the problem in plain English and get guided, step-by-step help. Start on the free plan; Pro is $9.99/month. BCC is an official Fyx365 partner.

Still stuck? Ask Fyx365 AI (free plan)

Want a pro?

Book a repair at BCC

Diagnostic$60
Shop repairs$100/hr
On-site$100/hr + $100 visit

10504 W Fairview Ave, Boise ID · Fri–Wed 10 AM–8 PM · Closed Thursday

Book a repair at BCC Call 208-996-3508