How to Fix Windows Laptop Fan Running Constantly

Many users have reported that their Windows laptop fan is running constantly. Even when the laptop is idle, the fan may operate continuously at high speeds, generating loud noises. For some, this issue begins right from the Windows startup. If you find yourself in this situation, the solutions provided in this post can assist you.

Resolve the Issue of Windows Laptop Fan Running Constantly

Follow these solutions if your Windows laptop fan is operating constantly and creating excessive noise:

1. Remove dust from the laptop fan and air vents
2. Adjust the Power mode settings
3. Modify Maximum processor state and system cooling policy
4. Terminate unnecessary background processes and applications
5. Disable overclocking features
6. Utilize laptop cooling software or a Cooling Pad.

Before you begin, it’s advisable to run a malware scan on your Windows 11/10 laptop and ensure that both Windows and the Graphics drivers are updated.

1] Remove Dust from the Laptop Fan and Air Vents

The laptop fan is essential for cooling the processor and other components and is typically located on the bottom. Over time, it may accumulate dust, which can block airflow and cause the fan to work harder. To resolve this, power off your laptop, disconnect the battery, and carefully remove the base panel. Use compressed air or a soft brush to clean the dust off the fan blades.

Additionally, clean the air vents (located on the bottom or sides) to ensure unrestricted airflow. A lint-free cloth can help eliminate larger dust particles from the fans and vents.

2] Adjust the Power Mode Settings

If the power mode is set to Best Performance, it may lead to increased power usage and higher internal temperatures. To optimize your laptop’s performance and energy efficiency, follow these steps:

Open the Settings app > System > Power & battery. Under the Power mode section, set both Plugged in mode and On battery mode to Balanced or Best Power Efficiency.

3] Modify Maximum Processor State and System Cooling Policy

In the Power Options, the maximum processor state setting defines the performance level of your processor. By default, it is set to 100% for both On battery and Plugged in mode, which could lead to overheating and consequently cause the fan to run continuously at high speeds.

The system cooling policy adjusts fan and CPU clock speeds to manage internal temperatures. If it is set to Active, the fan speeds up before the processor slows down. To adjust these settings:

1. Go to Control Panel > Hardware and Sound > Power Options
2. Click on Change plan settings
3. Select Change advanced power settings to open the Power Options box
4. Expand the Processor power management section
5. Adjust the Maximum processor state to 99% or 90% for both On battery and Plugged in modes
6. Set the System cooling policy to Passive for both modes
7. Click OK to save the changes.

Restart your laptop to see if the fan operates at normal speeds.

4] Terminate Unnecessary Background Processes and Applications

Upon starting Windows, many processes and applications may run automatically in the background. While essential processes are necessary, others might be consuming resources unnecessarily, leading to overheating and increased fan activity. To address this, check the Task Manager, particularly the Processes tab, and end any unnecessary applications. Additionally, head to the Startup apps section to disable apps that don’t need to start with Windows.

For background apps, you can adjust settings in Windows and set Background app permissions to Never or Power optimized for individual applications.

5] Disable Overclocking

Overclocking of RAM or CPU accelerates these components beyond manufacturer specifications, which may enhance gaming and overall performance, but it often results in overheating and increased workload for laptop components like fans. If you have overclocking enabled, consider disabling it to see if this resolves your fan speed issue.

6] Utilize Laptop Cooling Software or a Cooling Pad

Some laptop manufacturers provide built-in features or software (e.g., HP CoolSense Technology) designed to automatically manage system temperature and performance, which can help regulate fan speeds. If your laptop lacks such functionality, consider using third-party laptop cooling software. Alternatively, investing in a laptop Cooling Pad can help regulate temperatures effectively.

If these solutions do not alleviate the issue, you may need to contact customer support for further assistance.

Why is My Laptop Fan So Noisy When Nothing is Running?

Common factors for a loud laptop fan include overheating, blocked air vents, malware, or unnecessary background applications. A damaged fan can also contribute to excessive noise levels.

Is it Normal for Laptop Fans to Run Continuously?

It is normal for a laptop fan to run frequently during demanding tasks, such as intensive gaming or running resource-heavy applications, as this helps regulate temperature. However, if the laptop fan is running continuously while idle and producing excessive noise, it may be necessary to take action, such as cleaning the fan, checking air vents, and eliminating unnecessary applications.

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