Fix Windows Modules Installer Worker High CPU Usage: 3 Ways

Discover tried-and-true strategies vetted by our team of specialists

by Tashreef Shareef
Tashreef Shareef
Tashreef Shareef
Windows & Software Expert
Tashreef Shareef is a software developer turned tech writer. He discovered his interest in technology after reading a tech magazine accidentally. Now he writes about everything tech from... read more
Reviewed by Alex Serban
Alex Serban
Alex Serban
Windows Server & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
Affiliate Disclosure
  • The Windows Modules Installer Worker high CPU usage problem is common among Windows devices and users.
  • You can fix the Windows Modules Installer Worker problems by deleting the distribution folder, as shown below.
  • Also, you can run the troubleshooter, restart the system and check if the high CPU issue is solved.
Windows Modules Installer Worker high cpu

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The Windows Module installer worker process is related to the Windows update process and can result in high CPU usage of up to 100 %, bringing your PC to a halt.

This is concerning as the process shouldn’t use a lot of resources ideally. Thankfully, it is not an impossible issue to fix, as we will show in the ensuing sections of this article.

What causes Windows Modules Installer Worker high CPU usage?

Below are the few factors that can cause the Windows Modules Installer Worker to record high CPU usage:

  • Issues with Windows update: If the Windows Modules Installer Worker is registering high CPU and memory usage, it might be because of problems with the Windows update process. The solution is to disable automatic updates and run the Windows update troubleshooter.
  • Faulty system files: In some cases, this problem can happen if the files needed for the update might be corrupt. The way out of this is to restore these files by deleting them and allowing your PC to create another.

How can I fix Windows Modules Installer Worker high CPU usage?

In this article

1. Delete the SoftwareDistribution folder

1.1 Stop Windows Update service

The effective solution that is worth trying is to terminate your Windows Update services by using the Services tool as displayed in the guide below.

1. Press Windows key + R to open Run. Type services.msc and hit Enter.

services windows modules installer worker high cpu

2. In the Service window, look for Windows Update service.

3. Right-click on Windows Update service and select Stop.

stop windows modules installer worker high cpu

First, stop the Windows update service from the Services interface so that you don’t get an error while deleting the SoftwareDistribution folder.

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Close the Windows Services window and follow these steps to delete the SoftwareDistribution Folder.

1.2 Delete the SoftwareDistribution folder

  1. Open File Explorer and navigate to the following directory: Local Disk (C:) > Windows
  2. Look for the SoftwareDistribution folder. Right-click on it, and select Delete.
    software distribution
  3. Reboot your PC.
  4. Press Windows + I and click on Update & security.
    update and windows modules installer worker high cpu
  5. Finally, click the Check for updates button.
    check for

Sometimes, the Software distribution files might get corrupted, leading to the Windows Modules Installer Worker high CPU usage issue.

One way to fix this issue is to remove the SoftwareDistribution folder and refresh the Windows update.

2. Prevent automatic Windows updates

  1. Press the Windows key + R, type services.msc, and click OK.
  2. Right-click the Windows Modules Installer option to open its properties.
  3. Now, set its Startup type to Manual and click Apply, followed by OK.
    manual option
  4. Go back to the Services window and double-click the Windows Update service.
    update windows modules installer worker high cpu
  5. Set its Startup type to Manual and click the Apply button, followed by OK.
    manual update windows modules installer worker high cpu
  6. Now, close the Services window.

The Windows Modules Installer Worker might use a high CPU percentage because it constantly searches for updates. This happens because your Pc is set to search and install updates automatically.

Following the steps above will reset everything to manual and give your more control over them. The only downside is that you will have to check for updates every two weeks or monthly.

3. Run Windows troubleshooter

  1. Press the Windows key + I and select the Update & Security option.
    update and windows modules installer worker high cpu
  2. Click Troubleshoot in the left pane and select Additional troubleshooters.
  3. Now, select Windows Update and click Run the troubleshooter.
    run the windows modules installer worker high cpu
  4. Finally, follow any recommendations to fix the issue with the Windows update.

After applying the fix, reboot the system and check if the Windows Modules Installer Worker high CPU usage issue is resolved.

And with this, we can conclude this guide on how to solve this high CPU usage issue. We believe you have everything to fix the issue for good and get your PC working again.

If you are facing a similar issue in TiWorker.exe high CPU usage, check our detailed guide to fix it.

Feel free to let us know the solution that helped you fix this issue in the comments below.

Still having issues? Fix them with this tool:


If the advices above haven't solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

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