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.

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

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

2014-08-01T18:34:02+00:00

See...

   • How can I tell if my computer is up to date?

     http://windows.microsoft.com/en-us/windows7/How-can-I-tell-if-my-computer-is-up-to-date

   • HOW TO run a manual check for updates

     http://windows.microsoft.com/en-us/windows7/How-can-I-tell-if-my-computer-is-up-to-date
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Anonymous

2014-08-01T18:07:39+00:00

My problem was not as bad as M Herbst's but it was irritating. I followed your directions Shinmila H and it worked great. Now when I boot up I can use my machine right away. Only problem is now I don't know how to install updates. Can you help me out?

Thanks!
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Anonymous

2014-06-30T15:18:31+00:00

Thank you. Looks like Uninstalling Citrix Zen Receiver fixed it for me.
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Anonymous

2014-06-03T23:04:54+00:00

I've had the same problem for a few weeks now. Also, I was receiving phone calls from foreign strangers claiming to be the "Microsoft Technical Company". How they got my phone number and knew that my "computer is having problems" makes me extremely uncomfortable, on top of the fact that their instructions seemed more likely to get them into my computer, as opposed to helping the actual problem...

It's a scam! See...

     I received a Phone Call From Someone claiming I have a Virus

     http://answers.microsoft.com/thread/4489f388-d6de-416d-9158-0079764bb001

Related:

     'Microsoft Support' calls - now with ransomware! (02 Oct-13)

     http://isc.sans.edu/diary/%22microsoft+support%22+calls+-+now+with+ransomware/16703

     When fake malware phones - Malware Protection Center blog

     http://blogs.technet.com/b/mmpc/archive/2013/03/06/when-fake-malware-phones.aspx

     What to do if you think you have been a victim of a scam

     http://www.microsoft.com/security/online-privacy/phishing-scams.aspx#Victim

More...

HOW TO combat tech support phone scams

http://blogs.msdn.com/b/securitytipstalk/archive/2013/05/23/how-to-combat-tech-support-phone-scams.aspx

HOW TO Avoid Phone Scams & Other Cybercriminal Tech Support Scams

http://www.microsoft.com/security/online-privacy/avoid-phone-scams.aspx

HOW TO Avoid [phone & email] scams that use the Microsoft name fraudulently

http://www.microsoft.com/security/online-privacy/msname.aspx

What is a Microsoft [Gold] Certified Partner?

http://securitygarden.blogspot.com/2011/09/microsoft-removes-gold-certified.html
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