FIX: Windows Module Installer High CPU Usage (Solved)

If you are experiencing a significant decrease in computer performance due to high CPU usage caused by “Windows Modules Installer” service, then continue reading below to fix the problem.

“Windows Modules Installer” or “Trusted Installer” is a Windows service that is responsible for installing, modifying, and removing Windows updates and optional components.

More specifically, the Windows Modules Installer process (TrustedInstaller.exe) is designed to install Windows updates and other system files, but sometimes it can hang or experience other problems causing it to use up too much CPU resources. Some of the most common causes of high CPU usage by “Windows Modules Installer” service are listed below:

Pending Windows updates: If there are updates waiting to be installed on your computer, the Windows Module Installer process runs continuously in the background until they are installed. Corrupted System Files: If one or more system files are corrupted, the Windows Module Installer process cannot complete its work and uses an excessive amount of CPU resources when trying to complete Windows update installation. Large CBSD.LOG file: Component Based Service File (C:\Windows\Logs\CBS\CBS.log), is a log file maintained by Windows to store information about components installed or removed during updates. If CBS. LOG exceeding 2GB in size, may cause the Windows Module Installer service to use up a lot of CPU resources.

In this tutorial, you will find several methods to fix “Windows Modules Installer/TrustedInstaller” high CPU usage issue in Windows 10/11.

How to Fix High CPU Usage in Windows Modules Installer (TrustedInstaller.exe) in Windows 10/11.

Method 1: Use the Windows Update Troubleshooter

Windows has many built-in tools to troubleshoot operating system problems. The “Windows Update Troubleshooter” is one of them and it can help you solve high usage problems caused by the “Windows Module Installer” process.

1. Press windows

+ button R to open the Run command box.
2. Type in the following command and press Enter. ms-settings: troubleshoot

3. Then choose Additional troubleshooter if you have Windows 10, or Another troubleshooter on Windows 11.

4. Click Windows Update and then press the Run the troubleshooter.

5. Leave the troubleshooter to try to detect and fix the problem, then check if the Windows Module Installer process is still causing high CPU usage.

Method 2. Delete the Windows Update Storage folder.

The second method to fix the high CPU usage issue of Windows Module Installer, is to delete and re-create the Windows Update Save folder (“C:\Windows\SoftwareDistribution”), which is the location where Windows stores downloaded updates. To do this:

+ button R to open the run command box.
2. In the run command box, type: services. msc and press enter.

3. Right click on the service Windows update and choose Stop.

4. Now, open Windows Explorer and browse the contents of the folder”C:\Windows“.

5. Search and Wipe folders SoftwareDistribution.* (Click Continue on the message “Folder Access Denied”).

* Note: The next time Windows Update is run, a new empty “SoftwareDistribution” folder will be created automatically by Windows to store updates.

6. After it finishes, restart your computer.
7. Check if the problem is resolved.

Method 3. Delete CBS.LOG & Windows Temp files.

The next method to get rid of the high CPU usage problem caused by the Windows Modules Installer service, is to delete the CBS.LOG file which stores information about the changes made to your computer during Windows Update, and Windows temporary files.

+ R key to open the run command box.
2. In the run command box, type: services. msc and press enter.

3. Right click on service Windows Modules Installer and click Stop.

4a. Now, open the following folder:

C:\Windows\Logs\CBS

4b. Wipe files CBS. LOG.

5a. Now open the following folder (press Continue when requested):

C:\Windows\Temp

5b. Press CTRL + A to select all files then Wipe they.

6. Final, restart your PC and check if the problem is resolved.

Method 4. FIX Windows Module Installer High CPU Usage with DISM & SFC Tool.

The final method to fix the problems mentioned, is to repair Windows 10/11 by following the steps below:

1. Open prompt command as administrator. To do this:

1. In the Search box type: cmd or command prompt
2. Right click on command prompt (result) and select Run as Administrator.

2. At the command prompt window, type the following command & press it enter:

Dism.exe/Online/Cleanup-Image/Restorehealth

3. Be patient until DISM fixes the component store. When the operation is complete, (you should be notified that the component store corruption has been fixed), issue this command and press enter:

SFC/SCANNOW

4. When the SFC scan is complete, restart your computer.

There he is! Which method worked for you?
Let me know if this guide has helped you by leaving a comment about your experience. Please like and share this guide to help others.