How to Stop a Laptop Overheating: 9 Simple Fixes
A laptop usually overheats because its air vents are blocked, dust has built up inside, or the processor is working too hard. You can stop most overheating by using the laptop on a hard, flat surface, cleaning the vents, closing heavy apps, changing the power settings and keeping the software up to date. If it still runs very hot, the fan or thermal paste may need a repair.
To stop a laptop overheating, use it on a hard, flat surface, clean dust from the vents with short bursts of compressed air, close apps you are not using, switch to a balanced or battery-saver power mode and keep Windows or macOS updated. A cooling pad helps if you work for long hours. If the laptop shuts down from heat or the fan is very loud, get it checked by a repair shop.
Key Takeaways
- Soft surfaces are the biggest cause: beds, sofas and cushions block the vents underneath.
- Dust builds up over time, so clean the vents every few months.
- Heavy apps and browser tabs make the processor and fan work harder.
- A cooling pad or laptop stand improves airflow.
- Stop using a laptop with a swollen battery and get it checked straight away.
Signs Your Laptop Is Overheating
🔊 Loud fan
The fan runs fast and noisily, even when you are doing simple tasks.
🔥 Hot base
The bottom or keyboard feels very hot to touch.
🐢 Slowdowns
The laptop lags or freezes as it slows itself down to cool off.
⛔ Sudden shutdowns
It switches off without warning to protect the parts inside.
Why Do Laptops Overheat?
- Blocked vents: using a laptop on a bed, duvet or lap stops air flowing in and out.
- Dust and pet hair: dust clogs the fan and vents so hot air cannot escape.
- Heavy workloads: games, video editing and dozens of browser tabs push the processor hard.
- Background programs: apps running unseen, or malware, can use lots of power.
- Hot rooms and sunlight: a warm room or direct sun makes cooling harder.
- Old thermal paste or a worn fan: in older laptops, the parts that move heat away may stop working well.
9 Ways to Stop a Laptop Overheating
- Use a hard, flat surface such as a desk or table, never a bed, sofa or pillow.
- Raise the back of the laptop slightly with a laptop stand so more air can flow underneath.
- Clean the vents. Turn the laptop off and unplug it, then blow short bursts of compressed air into the vents. Do not use a vacuum cleaner.
- Close apps and tabs you are not using. On Windows, open Task Manager (Ctrl + Shift + Esc). On a Mac, open Activity Monitor to see what is using the most power.
- Change the power mode. On Windows, choose Balanced or Best power efficiency in Settings > System > Power & battery. On a Mac, turn on Low Power Mode in battery settings.
- Update your software. Install Windows or macOS updates and any updates from your laptop maker, as these can improve fan control.
- Scan for malware with your built-in security software if the fan runs high for no reason.
- Use a cooling pad for long gaming or work sessions.
- Keep the room cool and keep the laptop out of direct sunlight.
Tip: A laptop stand that lifts the screen to eye level also improves your posture and helps the laptop stay cooler at the same time.
Windows vs Mac: Quick Checks
| Check | Windows | Mac |
|---|---|---|
| See what is using power | Task Manager (Ctrl + Shift + Esc) | Activity Monitor |
| Lower power use | Settings > System > Power & battery | System Settings > Battery > Low Power Mode |
| Update software | Settings > Windows Update | System Settings > General > Software Update |
| Startup apps | Task Manager > Startup apps | System Settings > General > Login Items |
When to Get Your Laptop Repaired
Stop using the laptop and get help from a repair shop or the manufacturer if the battery looks swollen, the case is bending, you smell burning or the laptop gets too hot to touch. Do not try to open or puncture a swollen battery.
A repair shop can clean the inside properly, replace a faulty fan and renew the thermal paste between the processor and the heatsink. This is common for laptops that are several years old and can make a big difference to temperature and noise.
If your laptop is also struggling to connect to the internet, read our guide to fixing Wi-Fi that is connected but has no internet.
Frequently Asked Questions
Is it bad if my laptop gets hot?
Laptops naturally get warm, especially when gaming or editing video. It becomes a problem if the laptop is too hot to touch, slows down, or shuts itself off.
Can overheating damage a laptop?
Yes. Regular overheating can shorten the life of the battery, processor and other parts. Most laptops slow down or shut off to protect themselves, but it is best to fix the cause.
Do cooling pads really work?
Yes, they can lower temperatures by improving airflow underneath the laptop, especially for gaming laptops and long work sessions.
How often should I clean my laptop vents?
Every three to six months is a good guide, or more often if you have pets or a dusty home.
Why does my laptop overheat when charging?
Charging creates extra heat, especially if you are also running heavy apps. Use the original charger, keep the laptop on a hard surface and avoid charging it on a bed or sofa.
Final Thoughts
Most laptop overheating problems have simple fixes: give the laptop a hard surface and good airflow, keep the vents clean, close heavy apps and keep the software up to date. If the laptop still runs hot or shows signs of a swollen battery, get it checked by a professional rather than putting up with it.
