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
    2010-07-08T14:26:22+00:00

    [1] I have also remove the anti-virus tool but also without any effect.

    [2] Some days ago I upgraded from KIS 2010 [to KIS 2011] and I am not sure whether the problem started after this upgrade.

    A1. I don't understand what you meant here. Please elaborate.

    A2. Had your KIS 2010 subscription already expired by the time you purchased & installed/upgraded to KIS 2011?

    ~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
    2010-07-08T07:48:02+00:00

    Resetting the Windows Update did not help. I have also remove the anti-virus tool but also without any effect.

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  3. Anonymous
    2010-07-07T14:31:36+00:00

    See if running the automated Windows Update troubleshooter, followed by a reboot, resolves the behavior: http://support.microsoft.com/mats/windows_update/

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  4. Anonymous
    2010-07-07T05:24:43+00:00

    Hi Robear,

    it was a fresh install of Win 7 and no upgrade.

    I have installed Kaspersky Internet Security 2011 and I am using it for anti-virus and also firewall. Some days ago I upgraded from KIS 2010 and I am not sure whether the problem started after this upgrade. I have never use an other anti-virus application.

    I could try to remove Kaspersky and see what happens.

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