What is TrustedInstaller.exe process? Why does TrustedInstaller.exe sometimes utilize a high percentage of processor power and make my system slow? Can I disable TrustedInstaller.exe? These are a few questions I will try to answer in this post.
What is TrustedInstaller.exe process?
TrustedInstaller.exe is process of Windows Modules Installer service in Windows 7 and Vista. Its main function is to enable installation, removal and modification of Windows Updates and optional system components.
TrustedInstaller.exe is located at C:\Windows\servicing\and its normal startup of this service is set at Manual and it runs under the Local System Account. It has no dependencies.
At times you may find that TrustedInstaller.exe has been corrupted and you may bet an error message to that effect. In such a case running the System File Checker may help. But sometimes even Windows Resource Protection service, which runs the system file checker is affected. In such a case if you try to run sfc /scannow, you may get the error message:
Windows Resource Protection could not start the repair service
In such a case you may have to Repair Windows 7.
Why does TrustedInstaller.exe sometimes utilize a high percentage of resources?
At times, especially after you have downloaded and installed Windows Updates, on restart you may find TrustedInstaller.exe in your Task Manager consuming a lot of resources. That is normal. Just allow it to run its course.
Can I disable TrustedInstaller.exe?
While there are ways to disable or remove TrustedInstaller.exe, and these are being suggested by many sites, you don’t want to do that as it is a protected system resource. If you disable this service, Windows Updates may fail to install or uninstall!
Running System File Checker will help you replace deleted or corrupted system files.