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

Anonymous
2010-06-30T06:47:56+00:00

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.

Windows for home | Previous Windows versions | Windows update

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Anonymous
2010-07-20T06:16:30+00:00

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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  1. Anonymous
    2010-07-05T19:53:33+00:00

    Did you upgrade to Win7 64-bit or is it a new computer?

    What anti-virus application or security suite is installed and is your subscription current?  What anti-spyware applications (other than Defender)?  What third-party firewall (if any)?

    Has a(another) Norton or McAfee application ever been installed on the computer (e.g., a free-trial version that came preinstalled when you bought it)?

    ~Robear Dyer (PA Bear) ~ MS MVP (IE, Mail, Security, Windows & Update Services) since 2002 ~ Disclaimer: MS MVPs neither represent nor work for Microsoft

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  2. Anonymous
    2010-07-05T14:38:43+00:00

    Hi Shinmia,

    unfortunately neither method 1 nor method 2 worked. After stopping the service (as described in method 2) it started immediately again. It seems to be impossible to stop this process from working :-(.

    Regards

    Martin

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  3. Anonymous
    2010-07-02T20:05:52+00:00

    Hi Martin,

    Try these additional steps.

    Method 1: Clear Problem History

    The following fix is intended for situations where trustedinstaller.exe causes problems due to the Problem Reports and Solutions history maintained in Windows 7.

    Refer the steps to clear the history from: How do I clear the problem report history from my computer?

    More information about problem reports: See all problem reports for this computer

    Method 2: Stop the Windows Module Installer That Runs Trustedinstaller.exe

    a.    Click onStart, in the Start Search box, type “msconfig” without the quotes and then press Enter.

    b.    Click Continue whenUser Account Control prompt is displayed.

    c.    In the System Configuration window that is displayed, open the Services tab.

    d.    Locate and clear the Windows Module Installer check box.

    e.    ClickOK save your changes and exit the dialog box.

    f.     Next, open Services window by typing “services.msc” without the quotes in the start search field.

    g.    Double-Click on Windows Module Installer.

    h.    Change the Startup type of Windows Module Installer to Manual.

    i.     Click Apply.

    j.     If the services status is running, click on Stop button.

    k.    Click OK.

    Method 2 is for test purpose. If there is no improvement after following method 2, revert the changes done. Keep us posted on the issue.

    Regards,

    Shinmila H - Microsoft Support

    Visit our Microsoft Answers Feedback Forum and let us know what you think.

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  4. Anonymous
    2010-07-01T06:28:35+00:00

    Thank you for your answer. But the problem is that the process is permanently active and its CPU usage changes every 2 or 3 s between 0 and more than 20 %. 

    I have disabled the automatic updates but it does not help. The TrustedInstaller is furthermore active.

    Regards

    Martin Herbst

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