Why Are My PC Fans Suddenly Loud?

There are several different reasons why a computer’s fans may be suddenly loud. These reasons range from bloatware and viruses to overheating and cables touching the fan blades. Ultimately, you must determine the cause of the problem before you can do anything else. Fortunately, there are a few easy solutions that you can try.

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If you notice your computer’s fans are suddenly loud, you may be experiencing the effects of malware on your PC. Malware can consume storage space, CPU resources, and other system resources. These infections can also cause your computer to overheat. In order to combat this problem, you should install a good antivirus. Once you have installed an antivirus, you should check the Task Manager to determine if any suspicious applications are running. If you find any programs with strange arrangements or letters, they are likely malware.

Another factor that can lead to computer fan overheating is software and hardware issues. For example, running multiple programs at the same time can overload your CPU. This can cause the fans to run continuously. In addition, your computer may not be powerful enough to run the software and programs you want to use.


The first thing you should do if you’ve noticed that your PC is suddenly making a lot of noise is to uninstall any bloatware installed on it. This software is causing the problem, as it is using valuable CPU processing power and hard drive space that you don’t need. In order to remove bloatware, you can use a program like AVG TuneUp.

Another problem that can cause your PC to make noisy fans is malware. Malware can cause your PC to run too many processes, overheating it, and damaging critical components. Luckily, malware removal software can detect and remove these infections for you.


If your computer’s fan is running constantly, there’s a good chance that it’s overheating. This happens when your CPU runs hot or there’s a lot of software running in the background. The more work your computer is doing, the louder its fan is.

Thankfully, there are ways to deal with the problem. The first is to make sure your computer has proper ventilation. Having good air circulation will make your computer’s fan run more efficiently and extend its life. You can also try placing your computer in a cooler room. Make sure that the bottom and side air vents aren’t blocked by furniture or other objects.

Another common cause of overheating is software that runs in loops. These software processes use a lot of CPU power and can cause excessive heat. To find out which software is making your computer run too hot, open the Task Manager. If you see a particular program causing the computer’s fan to run too loudly, stop it.

Cables touching fan blades

If you’re hearing a rattling, clicking, or whistling noise coming from your PC, you may be experiencing a fan problem. While these noises can come from a few causes, one of the most common is a cable touching the fan blades. This can cause excessive noise, which can be very irritating. In order to identify which cause is causing the noise, you should open your PC and remove any cables that are touching the fan blades.

If the noise doesn’t stop after several minutes, it may be a broken fan. Usually, a fan will start making noise only after five minutes of use. It can also be caused by a faulty or smaller fan. If the noise is caused by a faulty fan, a simple fix is to clean or replace it.

Overheating caused by a blanket

A faulty electric blanket can cause a fire. This can result in severe injury or even death. In the late eighties and early nineties, thousands of fires were reported in the UK due to these blankets. The main cause of these fires is overheating of the blankets’ wires. Most of the fires were caused by blankets that were at least ten to thirty years old.

People with diabetes can be particularly vulnerable to overheating because their bodies cannot detect temperature changes. This means that the person may be exposed to too much heat for a long period before realizing it. To avoid this, use an electric blanket with safety features and a timer.