How to clean dust from a computer safely
Before cleaning
Shut the computer down, unplug it and allow it to cool. Use a soft, slightly damp cloth outside and never spray liquid directly onto the screen or keyboard.
Air vents
Remove visible dust carefully and prevent the fan from overspinning in a strong air stream. Blowing through vents may leave a compacted layer inside the heatsink.
Why disassembly may be needed
Dust often packs between the fan and radiator. Proper cleaning requires safe opening, battery disconnection and correct renewal of thermal materials when the heatsink is removed.
Testing afterwards
Clean appearance is not enough. Fan operation and CPU/GPU temperatures should be checked at idle and under load.
Checks you can do yourself
Before seeking help, note the exact model, photograph any error message and record what happened before the symptom appeared. It is safe to check the wall outlet, cable, external devices and backup status. Do not open batteries, power supplies or system boards without the correct tools and experience.
Common mistakes to avoid
Repeated restarts, random “repair” utilities, unsuitable chargers and hot-air drying after a spill often make recovery harder. If you hear crackling, smell burning, see a deformed case or know that liquid entered the device, shut it down and disconnect power immediately.
Information that helps a technician
Explain when the fault began, whether it appears under load and whether there was an impact, spill, update or previous repair. Bring the charger when power is involved. We preserve customer data by default and erase it only at the customer’s request or with consent when required for the work.
Reducing the chance of recurrence
After repair, follow cooling advice, avoid stressing connectors, install updates from trusted sources and keep important files in at least two independent locations. Periodic checks of temperature, drive health and backups help identify developing problems before a major failure.