Trustedinstaller.exe – Fix High CPU Usage [5 Ways]

Trustedinstaller.exe is an application that runs the Windows Modules Installer, part of Windows Resource Protection, which is usually found in windows 8, and 7. Its main function is to enable the installation, removal, and modification of Windows Updates and optional system features.

The thing about the trustedinstaller.exe is that some users say that it corrupts pretty easily which means that it has the chance to mess up your system.

Trustedinstaller exe - Fix High CPU Usage

It is known for its high memory usage in Windows which also make your computer use up a lot of resources that it’s not supposed to. The good news is that you can actually disable trustedinstaller.exe. Just follow some of the fixes mentioned below.

Trustedinstaller.exe is a process and it’s periodical high CPU usage is not abnormal, not an aberration or a flaw. Part of the “Windows Module Installer”, the primary purpose of trustedinstaller.exe is to check for new Windows updates.

Why Does Trustedinstaller.exe Use High Memory Usage?

During an update scan, this process runs in conjunction with the Integrated Windows Update service to check for new updates. The reason behind this is that during update times the trusted installer process uses a lot of CPU resources. You may also find trustedinstaller.exe consuming a major share of CPU resources for some time after the latest updates have been downloaded. This again is normal behavior. This process is designed to continue checking for new updates for some span of time after the completion of the update scan. This, in turn, helps make sure that all available new updates are downloaded to your system.

While trustedinstaller.exe high CPU usage cannot be totally resolved unless you remove this process, doing so is not advisable as trusted installer plays a vital role in keeping your system up-to-date. You can manage the problem more effectively through either of the following two methods.

One of the key causes as to why your system may run slowly is the presence of apps that take up a very high share of your CPU power.

One process that sometimes raises this type of issue is the Trustedinstaller.exe file.

How to Fix Trustedinstaller.exe High CPU Usage?

Here are some methods that will help you in fixing Trustedinstaller.exe high cpu usage. Please go through them.

1. Clear Problem History

As much as possible you wouldn’t want to disable trustedinstaller.exe as this can also affect some of the important Windows updates that your computer actually needs.

So the first thing you should try to do is to clear the problem history. Here’s how to do that:

  1. Click Start and go to Control Panel.
  2. Click on Problem Reports and Solutions.
  3. Click Clear Solution and Problem history.
  4. Click OK and confirm.

2. Disabling

According to the Windows club, you can also disable trustedinstaller.exe. It’s rather easy to disable trustedinstaller.exe. You just have to first try disabling the auto-update feature:

  1. Go to Start and then Control Panel.
  2. Click on the System Maintenance option.
  3. Turn off the automatic update option.
  4. Click Ok and exit the box.

3. Stop Windows Module Installer To Start When Startup

  1. Click on the Start button, and type MSConfig into Start Search box, then press Enter.
  2. Press Continue or Yes when prompted with User Account Control dialog box.
  3. In System Configuration, click on Services tab.
  4. Untick the checkbox next to Windows Module Installer to stop it from loading with Windows.
  5. Click OK.

4. Set Windows Module Installer Startup Type To Manual

  1. Go to Control Panel, then click on the System and Maintenance link, and then open Administrative Tools window.
  2. Open Services applet.
  3. In User Account Control dialog, click Continue.
  4. Locate the Windows Module Installer service, then hit right-click on it and choose Properties.
  5. In the General tab, click on the drop-down menu of Startup Type, and select Manual.
  6. Click Apply.
  7. If the status of the services is running, click on the Stop button.

5. Replace TrustedInstaller With SFC Scan

If you still can’t figure out if TrustedInstaller is a Windows process or a malware, we recommend starting with a System file check to make sure that your files are in order.

  1. In the Windows search box, write cmd. Right-click the first result and choose Run as administrator.
  2. In the cmd window, wait for the process to finish and then restart your computer.

This action will repair any corrupt files including TrustedInstaller, and everything should work fine after that.

If TrustedInstaller is a malicious virus, it has to be removed right away. To do that, you’ll need some powerful malware removal tool such as Bitdefender to remove it. We don’t promote any such third-party tools. Please choose at your own risk.


These were the methods to fix this issue of “trustedinstaller.exe”. This issue can be fixed very easily if these methods are followed successfully.

If you feel any difficulty in implementing the above steps please let us know in comments we will surely help you in getting out of this trouble.

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