Service TrustedInstaller.EXE permanently active taking up to 50% CPU resources

Anonymous

On my machine (Windows 7, 64 Bit) the TrustedInstaller.EXE is permanently active. The amount of used CPU changes permanently. 2 seconds 0 % then up to 50% (I have a dual core) for a second then down to 0.

Rebooting the machine did not help. Also a complete Virus scan was negative.

I have monitored the process with the Process Explorer tool. I can see that the process always access the same Registry key when it gets active. The key is

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\PackageDetect\Microsoft-Windows-IIS-WebServer-AddOn-2-Package~31bf3856ad364e35~amd64~~0.0.0.

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Anonymous

Hi Robear,

in the meantime I have found the process that was responsible for the trustedinstaller activities. It was the xenservice.exe that was installed together with the Citrix XenCenter on my machine. I have killed this process and suddenly the trustedinstaller.exe stopped its activities. So the problem is solved now because the XenCenter can work without this process and I will remove it from the auto

Thanks for your help.

Martin

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93 additional answers

Anonymous

2010-06-30T20:43:47+00:00

Hey M. Herbst,

Here's a little insight on TrustedInstaller service.

TrustedInstaller is used by a service called “Windows Module Installer” which is used to install Windows 7 system modules. The system modules include Windows Update and Automatic Updates which automatically scans your system to check for any new updates and hotfixes available. So when scheduled Windows Update is performing its update scan or check on your system, the TrustedInstaller.exe process increases the CPU usage.

The simplest resolution for the TrustedInstaller high CPU usage problem is to wait for a while for the TrustedInstaller.exe to complete its job. Once it finishes running the tasks, the CPU usage rate will return to normal.

However, if you want to stop TrustedInstaller.exe from taking up all your CPU resource, here’s a suggestion that may help.

Disable Windows from automatically updating.

Here’s how:

Turn automatic updating on or off

After disabling automatic updates, depending on your preference, you can change the way Windows notify you about updates.

Refer this article: Change how Windows installs or notifies you about updates

Regards,

Shinmila H - Microsoft Support

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