Laptops overheat when air can't flow through them — dust in the fan, blocked vents, or use on soft surfaces — or when a program is working the processor hard. Clean the vents, use it on a hard surface, and check Task Manager for programs using high CPU.
Common causes
Dust buildup
Dust clogs fans and heat sinks over time, especially in older laptops.
Blocked vents
Beds, couches, and laps block the air intake on the bottom of the laptop.
Heavy background programs
Runaway processes, browser tabs, or malware keep the processor busy.
Dried thermal paste
In older laptops, the paste that moves heat away from the processor stops working well.
How to fix it, step by step
- 1
Use a hard, flat surface
Keep vents clear and consider a laptop stand for airflow.
- 2
Check Task Manager
Sort by CPU to find programs using high processing power and close or remove them.
- 3
Clean the vents
With the laptop off, use short bursts of compressed air on the vents.
- 4
Update BIOS and drivers
Manufacturers release updates that improve fan control and power management.
- 5
Check the power mode
Use a balanced power mode instead of best performance if heat is a problem.
When to call a technician
If the laptop still overheats, it may need an internal cleaning or new thermal paste. We can service it so it runs cooler and lasts longer.
On-site support across Orange County · see our IT support, managed IT, Microsoft 365 support and cybersecurity services.
Frequently asked questions
Is it bad if my laptop gets hot?
Warm is normal; too hot to touch comfortably or shutting down isn't. Long-term heat shortens component life.
Do cooling pads help?
They can help a little, mostly by raising the laptop for airflow. Cleaning the fan helps more.
Why is my fan loud even when I'm not doing much?
A background process, update, or malware may be using the processor. Check Task Manager.