The fan sounds like a hair dryer, the keyboard is warm to the touch, and the laptop that felt quick this morning is now dragging. Heat is the quiet enemy of laptops. When a laptop gets too hot, it protects itself by slowing the processor down (called thermal throttling), and if it gets really hot, it may simply shut off.
The good news is that laptop overheating usually has an ordinary cause you can fix at home. Here are ten ways to cool things down.
Signs your laptop is overheating
- The fan runs loudly and constantly, even with only a browser open.
- The bottom or the area above the keyboard is uncomfortably hot.
- Performance drops suddenly during games, video calls or exports.
- The laptop shuts down or restarts with no warning.
Some warmth is normal, especially when charging or doing heavy work. It is the combination of heat, noise and slowdown that tells you something needs attention.
1. Give it room to breathe
This is the biggest one. Most laptops pull cool air in through vents on the bottom and push hot air out the side or back. Using a laptop on a bed, sofa, pillow or your lap blocks those vents almost completely. Put it on a hard, flat surface like a desk or table, and keep the exhaust vents clear of walls and books.
2. Raise the back slightly
Lifting the rear of the laptop by a centimeter or two gives the bottom vents much more air. A laptop stand works best, but even a book under the back edge helps. As a bonus, the higher screen is easier on your neck.
3. Clean out the dust
Over a year or two, dust builds up inside the vents and on the fan, forming a felt-like layer that blocks airflow. With the laptop turned off and unplugged, use short bursts of compressed air into the vents. Hold the can upright and do not let the fan spin wildly while blowing; you can gently hold it still through the vent with a toothpick if you can see it.
If the laptop is several years old and has never been cleaned, a technician can open it and clean the heatsink properly. It is usually inexpensive and can make a dramatic difference.
4. Check what is using the processor
A runaway process can keep the CPU busy and hot even when you are not doing much. Press Ctrl + Shift + Esc to open Task Manager and click the CPU column to sort by usage. If something you do not need is using a lot, select it and click End task. Browsers with dozens of tabs are frequent offenders.
5. Cut down on startup and background apps
Fewer programs running means less heat. Turn off apps that launch with Windows from Settings > Apps > Startup. Game launchers, chat apps and updaters rarely need to run all day.
6. Use a balanced power mode
In Settings > System > Power & battery, look at Power mode. Best performance lets the processor run hotter for longer. Switching to Balanced, or Best power efficiency when you are just browsing or writing, can noticeably reduce heat and fan noise. Many laptops also have their own thermal modes in the manufacturer’s app (Lenovo Vantage, MyASUS, HP Command Center and so on), often with a quiet or cool option.
7. Update Windows, drivers and BIOS
Manufacturers often release BIOS and driver updates that improve fan curves and power management. Check Windows Update, then visit your laptop maker’s support page or use their update app. Our guide on how to update drivers in Windows 11 safely explains the process.
8. Mind the room and the charger
A laptop in a hot room or in direct sunlight has a harder time cooling down. Charging also adds heat, so if the laptop is very warm, doing heavy work while it fast charges will make it worse. Use the charger that came with the laptop or a properly rated replacement.
9. Try a cooling pad
A cooling pad with built-in fans pushes extra air into the bottom vents. It will not fix a clogged fan, but for gaming laptops or long video exports it can lower temperatures by a few degrees and reduce throttling.
10. Scan for malware
Hidden crypto-mining malware is designed to use your processor in the background, which means constant heat. Run a full scan with Windows Security from Settings > Privacy & security > Windows Security > Virus & threat protection > Scan options > Full scan.
When to get professional help
If the laptop shuts down from heat even with clean vents and light use, the thermal paste between the processor and heatsink may have dried out after years of use. Replacing it is a job for a repair shop unless you are comfortable opening the laptop. Also, if the battery is swelling (the case bulges or the touchpad lifts), stop using the laptop and have the battery replaced right away.
Heat also wears out batteries faster, so check out our tips on laptop battery life in Windows 11 and how to check battery health on a Windows 11 laptop. Microsoft’s Windows support site has more on power settings.
Quick recap
Most laptop overheating comes down to blocked vents, dust and too much running in the background. Use it on a hard surface, raise the back, blow out the dust, close heavy processes and switch to a balanced power mode. If it still cooks, it is time for a professional clean and new thermal paste.
