Cannot find TrustedInstaller

I am trying to add 'TrustedInstaller' to the permissions list for a particular file folder. I can see on other folders where that user/group exists (c:\Intetput\custerr\en-US for example), but when I try to add that user/group to the permissions for a folder, TrustedInstaller cannot be found. I have even tried NT SERVICE\TrustedInstaller but to no avail.

Suggestions and thank you in advance.


Excellent Member
Microsoft Community Contributor
Well, you appear to be using the correct name for Trusted Installer. If you check the names after you enter the NT Service\TrustedInstaller, is should normally show.

I might be relevant to which file or folder you are trying to add a user to. I am in Windows 7 right now, but I don't remember seeing the folder you reference.

You have checked the Services panel and see the Windows Module Installer as an available service?

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