- 1). Turn the computer off.
- 2). Unplug the power cord and any peripheral devices attached to the laptop.
- 3). Close the computer and turn it upside down.
- 4). Locate the cooling fan. The cooling fan is usually located under an open grille on the bottom surface of the computer.
- 5). Insert a toothpick through the grille, between the fan blades. This keeps the fan from spinning too fast while using compressed air to remove the dust on the inside of the case. Spinning a cooling fan at the high speeds caused by compressed air can damage the fan motor.
- 6). Place the compressed air nozzle over the fan grille and blow any dust out of the computer.
- 7). Place the compressed air nozzle over the laptop's exhaust port and blow any loose dust out of the computer. Leave the toothpick in place to keep the fan from spinning.
- 8). Remove the toothpick. Turn the computer right-side up and re-attach the power adapter and peripheral cables.
- 9). Place the computer on a clean, flat surface. Both air vents must be free of obstruction for proper cooling.
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