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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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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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93 additional answers

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  1. Anonymous
    2015-05-11T19:01:51+00:00

    Hi M.Herbst,

    Follow this steps, please:

    1. Open Task Manager (you can click on Start and search "Taskmgr.exe" , without the quotes, and press Enter )
    2. Search for the program.
    3. Right click on the program and select Jump to details.
    4. Then right click the marked process.
    5. You will see different options:

        a) Set priority: Click the option, and select minimal. Proceed to b) .

        b) Set affinity: Click the option, uncheck  "all processors" and check CPU 0.

    After doing this, if it's working, you are all set. If not please contact me at ******@yahoo.com.

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  2. Anonymous
    2015-05-16T14:41:09+00:00

    Trustedinstaller is standard MS shovelware.  Even ignoring the infuriating 'no- you don't own your own files- WE do' issue, it often auto-loads even when one is fully up-to-date on updates. 

    Try to manually "stop process' in Task Manager, even after one has ticked "Never check for updates", it STILL autoloads.  What MS doesn't get: we won't buy the latest version till we get usability and reliability, issues that MS sees right through.

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  3. Anonymous
    2015-05-19T19:10:26+00:00

    I HAVE WINDWOS 8.1 I must have got a corrupt update now it want let me get any updates I tried to delete all the updates but trusted installer want let me after I delete them I was going to put them back on   WHAT DO I DO

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  4. Anonymous
    2015-08-06T16:22:01+00:00

    I had to change the Windows Modular Installer from Automatic to Manual for the effects of disabling Windows Update effecting it. For some reason it was running 100% of the time and I was unable to determine what using it, reported unable to find.  It will not turn off once it has started an will use up to 75% of the cpu cycles. Now once it starts it will run until the computer is rebooted which is better than 100% of the time.

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