Windows Modules Installer Worker causes high CPU [Solved]

Tashreef Shareef
by 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 Windows to iOS and streaming services... Read more
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  • 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.
  • If you have Windows set to update automatically, try setting it to manually by following the steps from our article.
How to fix the Windows Modules Installer Worker causes high CPU
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Windows Module installer Worker is one of the common processes that is known to cause high CPU usage in Windows systems.

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

Why the Windows Module Installer Worker hogs on my CPU, and can I disable it? The answer is no, you can’t. What you can do is reset the Update Services and delete the SoftwareDistribution folder.

That should resolve the problem immediately. Alternatively, you can run the dedicated troubleshooter or prevent Windows 10 from automatically applying updates.

Continue reading for the detailed instructions below.

How do I fix Windows Module Installer Worker on Windows 10?

  1. Delete the SoftwareDistribution folder
  2. Run Windows troubleshooter
  3. Stop Windows automatic updates

1. Delete the SoftwareDistribution folder

  • Stop Windows Update service
  1. Press Windows Key + R to open Run.
  2. Type services.msc and hit Enter.
  3. In the Service window, look for Windows Update service.
    Services - Windows Update - Stop
  4. Right-click on Windows Update service and select Stop.

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

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

  • Delete the SoftwareDistribution folder
  1. Open File Explorer and navigate to the following directory: Local Disk (C:) > Windows
  2. Look for SoftwareDistribution folder. Right-click on it, and select Delete.

Reboot your PC and check for Update again. Go to the following path: Settings > Update and Security > Windows Update > Check for update Windows by default downloads and stores new updates in the SoftwareDistribution folder.

Sometimes, the downloaded files can get corrupted and may result in high CPU usage due to consistently checking for updates.

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


2. Run Windows troubleshooter

  1. Click on Start and select Settings.
  2. Go to Update and Security and click on the Troubleshoot tab.
  3. Scroll down and click on Windows Update under Troubleshoot section.
    Windows Update- Troubleshooter
  4. Click on Run the Troubleshooter button. Windows Update will start scanning the system for Windows update issues and initialize the diagnostic.
  5. Follow the on-screen instructions to apply the recommended fix.

After applying the fix, reboot the system and check if the high disk usage issue is resolved. A good number of users have reported that running the Windows update troubleshooter has helped them fix the issue.

Windows by default include a troubleshooting utility to find and fix issues with the Windows updates.


3.  Stop Windows automatic updates

  1. Click on Start and select Settings.
  2. Click on Network and Internet.
  3. Go to the Wi-Fi tab, and click on your current Wi-Fi network.
  4. Scroll down to Metered connection.
  5. Turn on the Set as metered connection option for your Wi-Fi network.

If you have set Windows to update automatically, try setting it to manual. Users have reported having resolved the high CPU usage issue, by changing the update type to manual.

When on Metered connection, Windows 10 does not download updates over the network, and that should help you fix the high CPU usage issue.

However, this option is only available if you are using a Wi-Fi network through hotspot or router.


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