Everything About Windows Modules Installer Worker

Windows Modules Installer Worker has a reputation for its excessive CPU usage on Windows 10 systems. If your PC runs on Windows 10, you might have seen this process several times already. Well, you are not alone if you see that – there are plenty of other users experience the same issue. If you continue reading this article, you can learn how to fix it easily.

Windows Modules Installer Worker

Introduction to Windows Modules Installer Worker

In simplest terms, Windows Modules Installer Worker is a Windows Update Service. This specific service looks for potential new updates and installs related to your Windows OS. That means Windows Modules Installer Worker starts to run when the OS checks for or installs a Windows update.

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Why does this process take high CPU capacity?

The most frustrating thing about Windows Modules Installer Worker is that it takes a significant CPU capacity. To add more frustration to it, this process can emerge randomly, and it is just a “normal” process. In other words, you can expect Windows Modules Installer Worker more than once when you use Windows 10. That’s the bad part of it.

The good thing about it is that this process is supposed to stop automatically after running for some time. Once the process is completed, your CPU and disk resources will be released for other purposes. At the completion of the update, it will not appear on your Windows Task Manager. The duration the process takes to be completed will depend on a couple of aspects. That means aspects like the speed of the CPU, and the storage capacity of the computer will determine it. In addition to that, the number of updates the system has to run will affect the time it takes.

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Is it possible to disable this process?

Is it possible to disable this windows modules installer worker process?

It is true that some individuals may advise disabling the process straightaway to get rid of it. It is also true that disabling this process can stop excessive usage of CPU. However, disabling the process may not be the smartest approach for any Windows user. That is because your Windows OS becomes incomplete and even insecure if it doesn’t get updates as required. So, you must have this in mind when disabling the windows installer.

On the other hand, some individuals may even recommend setting the network with a meter. That means they advise you to apply a restriction on the network connection as a solution. This will prevent some updates from installing. Also, it will prevent the Windows modules installer process from getting activated. However, the downside of this move is that it doesn’t install critical security updates as well. As you can easily realize, preventing security updates from installing is not a very smart measure. That makes you vulnerable to various malware attacks, including viruses and ransomware. So, we should tell you that preventing essential security updates is a risky approach.

There is the option of installing the updates manually if you prefer. However, the Windows modules installer worker will still run once the manual update is done. So, the most recommended approach is to allow updates to be installed.

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Is Windows Modules Installer Worker a virus?

As we have mentioned above, the Windows Modules Installer Worker is a part of Windows. There is no malware with the same name as of this writing. Although there are many viruses that disguise themselves under other system files, that’s not the case with this process. Nevertheless, if you still suspect that your computer is under a malware attack, go ahead and scan it. You must have a good malware scanner installed on your computer and keep it updated. So, Windows Modules Installer Worker is not a virus, and it is a system process. You don’t need to worry about it but should be prepared to compromise some system resources time-to-time.

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What if something has gone wrong?

What can you do if something has gone wrong with the Windows Modules Installer Worker? For instance, what if the process is there for many hours and halted the system? Or what if you see the Windows Modules Installer Worker appears too frequently? In that case, you will have to go for some troubleshooting steps.

windows modules installer worker troubleshooting

What is the best way to fix Windows Modules Installer Worker issue?

As you may have realized by now, Windows Modules Installer Worker is not an error or a bug. However, you should look for a solution to it since it utilizes a very high amount of CPU capacity. In this section of our article, we explain a couple of steps to address this issue successfully. You don’t have to try all those methods. If one option works, you don’t have to try the next one. So, let’ learn how to do it.

Please note that these methods will disable the Windows update service. So, you must be prepared to face the consequences, as we have mentioned above.

01. Stop the Windows update service and disable it

The Windows operating system checks and installs for updates only when the update service is running. So, it is a rational step to stop and disable the update service to stop the updates. If you do it, the Windows Module installer worker will not consume excessive CPU resources as before. So, as we believe, this is a pretty effective solution to address this issue.

Mentioned below are the steps you should perform in order to disable Windows update service.

  • Press the “Windows” key and “R” on the keyboard and open the “Run” box on the screen.
  • You should then enter the text “services.msc” on the blank box. Now, you can either hit enter or press “OK.”
  • You can see a separate window labeled “Services” now. Locate the option called “Windows Update” and double-click on it.
Stop the Windows update service and disable it
  • Now, you can set the startup type of this option to “Disabled” and click on “Stop.” Then, you should click on the button labeled “Apply” and then press “OK.”
Stop the Windows update service and disable it
  • You will see that the CPU usage will get back to normal once the process is stopped. If you don’t see the windows modules installer worker issue is resolved, you should move to the next solution we present.

02. Change the settings of your internet connection

The next solution to address this issue is changing the internet settings of your computer. The purpose of this step is to change the internet connection to a metered connection. We will explain how to do it on a Wi-Fi network as well as on an Ethernet network.

For those who are using a Wi-Fi network

Here are the steps to follow if you want to change the internet settings on a Wi-Fi connection.

  • First, go to the “Start” menu on your computer and then go to the option called “Settings.” Then, choose the option labeled “Network & Internet.” Under that, choose “Wi-Fi” and then select “Advanced Options.”
For those who are using a Wi-Fi network to fix windows modules installer worker
  • Now, you can see an option called “Set as metered connection.” Just tick it.
For those who are using a Wi-Fi network

That’s it. You have just created a metered connection that prevents excessive usage.

For those who are using an Ethernet connection

Here are the steps you should follow in order to set a metered connection on an ethernet network.

  • First, press the “Windows” and “R” keys to bring the “Run” box up.
  • Once the “Run” box is opened, you should enter the text “Regedit” and then press “OK.”
  • You will be able to see a prompt now. Just click “Yes” to proceed.
  • Once the window is opened, you should follow the path below. HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > NetworkList > DefaultMediaCost
  • Then, you should perform a right-click on the option called “DefaultMediaCost” and then choose “Permissions” as well.
For those who are using an Ethernet connection
  • You can now click on “Add.” Type the username and click on the option labeled “Check Names.”
  • Click on “OK” now.
For those who are using an Ethernet connection
  • You can now click on the user you have added. Then, tick on the option “Allow” for full control. Then, click on “OK.”
For those who are using an Ethernet connection
  • You can now double-click on the option called “Ethernet.” Then, you will find a “Value Data” for it. Just set it to “2“. Then, you should click on “OK” and close the window.
For those who are using an Ethernet connection
  • You can reboot the PC so the changes will be applied to the system. Just observe the CPU usage now. It must be very low compared to the previous status.

Those are the two options we have to present to resolve Windows Modules Installer Worker. You can try one option after the other if the first option doesn’t work.


Windows Modules Installer Worker is not a virus at all. It is just a system process that becomes activated when the system starts to work on an update. However, it can become problematic at times, as mentioned in the article. If you face such annoyance, you can try the solutions we have mentioned above. However, if it runs without any unusual behavior, we don’t recommend you to disable or stop it.