Laptop Getting Hot — or Switching Itself Off?
If your laptop grows uncomfortably warm, whirrs like a hairdryer, or suddenly shuts down on its own, it's almost certainly getting too hot inside. It's the laptop's way of protecting itself — a bit like a kettle switching off so it doesn't boil dry. The good news is that the most common cause is simply dust and warm air with nowhere to go, and that's easily sorted.
1. Let It Breathe
Every laptop has small vents that draw in cool air and push warm air out. Using it on a bed, a sofa cushion, or your lap can block those vents completely.
- Use it on a firm, flat surface — a table, a desk, or a lap-tray.
- Make sure nothing is covering the vents on the sides and underneath.
A laptop needs to breathe like you do. Cover its nose and mouth — the vents — and it quickly gets into difficulty.
2. Clear the Dust
Over the years, dust gathers in the vents and clogs them like lint in a tumble dryer. A can of compressed air (a few pounds from any hardware shop) does the trick: with the laptop switched off, give the vents a few short puffs to blow the dust out. Never poke anything inside.
3. Keep an Eye on the Temperature (Optional)
If you'd like to see how hot things are getting, a small free programme can show you. It's not essential, but some people find it reassuring.
| What It Does | Free Tool |
|---|---|
| Shows your laptop's temperature | Core Temp — alcpu.com/CoreTemp |
| A fuller health readout | HWMonitor — cpuid.com |
Comfortable everyday temperatures sit roughly between 40°C and 70°C. Brushing up against 90°C or more while doing very little is a sign the cooling needs attention.
4. When It Needs Inside Help
If the vents are clear and it still overheats, the cooling paste inside (a heat-carrying layer that dries out over years) may need replacing. That's a job that means opening the laptop — best left to someone who does it regularly.
Ask our IT Man — free, no obligation. Tell us your model and when it overheats (always, or only when watching videos or video-calling?). We'll tell you honestly whether it's a five-minute clean or a job worth booking in.
In a Nutshell
Heat is the enemy of every laptop. Keep it on a hard, flat surface, keep the vents clear of dust, and it should run cool and quiet. If it still overheats or shuts down after a good clean, the cooling inside may simply be tired — and that's our department, not a job to tackle alone.
