How to clean inside of dirty computer?

How to Clean Inside of a Dirty Computer

Is your computer running slow or making strange noises? It may be time to clean the inside of your computer. Over time, dust and debris can accumulate inside your computer case, affecting its performance and potentially causing damage to sensitive components. Cleaning the inside of your computer is crucial for its longevity and optimal functioning. In this article, we will guide you through the steps of cleaning the inside of a dirty computer, ensuring a smooth and efficient experience.

How to clean inside of dirty computer?

The process of cleaning the inside of a dirty computer is relatively simple and requires a few tools. Here’s a step-by-step guide:

1. **Turn off your computer and unplug it** – Before beginning the cleaning process, make sure to shut down your computer completely and unplug it from the power source. This will prevent any potential accidents or damage.

2. **Open the computer case** – Most computer cases are designed to be opened easily, often by removing a couple of screws or sliding a latch. Refer to your computer’s manual or manufacturer’s website for specific instructions on how to open your computer case.

3. **Ground yourself** – Before touching any internal components, it’s important to discharge any static electricity accumulated in your body by touching a grounded object such as a metal table or using an anti-static wristband. This will help prevent any accidental damage caused by static electricity.

4. **Remove dust with compressed air** – Use a can of compressed air to blow away dust and debris from the various components inside your computer. Hold the can upright and use short bursts of air to avoid any condensation build-up. Pay special attention to the fans, heatsinks, and vents, as these tend to accumulate the most dust.

5. **Clean fans and vents** – Fans and vents are notorious for attracting dust. To clean them effectively, hold the fan blades in place to prevent them from spinning, and use a soft brush or cotton swab to gently remove the dust. For hard-to-reach areas, compressed air can once again come in handy.

6. **Remove stubborn debris with a brush** – In some cases, dust or debris might have hardened and cannot be removed using compressed air alone. In such instances, use a soft brush or toothbrush to gently scrub away any stubborn spots.

7. **Clean the motherboard and other components** – Use a soft brush to clean the motherboard and other circuit boards inside your computer. Be careful not to put too much pressure on the components, as they can be delicate.

8. **Clean the power supply unit (PSU)** – Dust accumulation in the power supply unit can affect its performance and potentially overheat it. Use compressed air to clear any dust from the PSU’s fan and vents.

9. **Clean the storage devices** – If your computer has hard drives or solid-state drives, use a clean, lint-free cloth to wipe away any dust or debris from their surfaces. Avoid using any liquids or solvents, as they can damage the drives.

10. **Reassemble the computer** – Once you have finished cleaning all the components, carefully reassemble your computer case by reversing the steps you took to open it. Double-check that everything is properly connected before turning the computer back on.

11. **Test your computer** – After cleaning the inside of your computer, it’s a good idea to run some tests to ensure everything is working as expected. Monitor the system’s temperature, check for any unusual noises, and test the performance to verify that the cleaning process was successful.

12. **Establish a regular cleaning schedule** – To maintain your computer’s cleanliness and optimal performance, establish a regular cleaning schedule. Depending on the environment your computer is in, it may be necessary to clean the inside every three to six months.


1. How often should I clean the inside of my computer?

Ideally, you should clean the inside of your computer every three to six months, depending on the environment it is in.

2. Can I use a vacuum cleaner instead of compressed air?

Using a vacuum cleaner is not recommended as it can generate static electricity and potentially damage sensitive components. Compressed air is a safer option.

3. Is it necessary to remove all the components to clean the inside of the computer?

Generally, it is not necessary to remove all the components to clean the inside of a computer. However, if you prefer a thorough cleaning or need to access specific areas, you may need to remove certain components.

4. Can I use water or cleaning solvents to clean the inside of my computer?

No, using water or cleaning solvents inside your computer can cause damage to the components. Stick to using compressed air, brushes, and dry cloths.

5. Can I clean my laptop’s interior in the same way?

Cleaning the interior of a laptop requires a different approach. It is best to consult the manufacturer’s instructions or seek professional help for laptop cleaning.

6. Is it safe to clean the inside of a computer while it’s powered on?

Cleaning the inside of a computer should never be done while it’s powered on. Always make sure to turn off the computer and unplug it from the power source before starting the cleaning process.

7. Should I wear gloves while cleaning the inside of my computer?

Wearing gloves is not necessary unless you are concerned about transmitting oils from your hands to the components. However, it is important to ground yourself to discharge any static electricity.

8. Can I reuse the compressed air can for future cleanings?

Compressed air cans can generally be reused for future cleanings until they are completely empty. Always follow the manufacturer’s instructions on the can for proper disposal.

9. Can cleaning the inside of my computer improve its performance?

Yes, cleaning the inside of a dirty computer can improve its performance by preventing overheating caused by dust accumulation and ensuring fans and components work properly.

10. Are there any risks involved in cleaning the inside of a computer?

While cleaning the inside of a computer is generally safe, there are some risks involved if not done properly. Mishandling components or using excessive force can cause damage. It’s important to follow the steps carefully and be cautious.

11. Why do fans make loud noises inside a computer?

Dust accumulation on fans can cause them to become unbalanced or clogged, resulting in excessive noise. Regular cleaning helps prevent these issues.

12. Can I clean the inside of a computer without opening the case?

To effectively clean the inside of a computer, it is usually necessary to open the case. However, you can use compressed air to blow away dust from external fan vents and ports without disassembling the computer.

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