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Sep 25 2012

The Trust Relationship between this Workstation and the Primary Domain failed

Since Windows 7 is in production a new error had shown up and I never found the real workaround.

If you had the error message “The Trust Relationship between this Workstation and the Primary Domain failed” when you tried to logon you will know what I’m talking about.

Most of the time I receive this error when the workstation is connected to a domain and you do a System Restore. I also had it before after certain Windows Updates. As soon as the workstation reboot after the System Restore or Windows Update you will get this error and then you won’t be able to logon with your domain user and password. Next you will realise that the Local Administrator Account on the workstation is disabled by default in Windows 7 so if you haven’t setup an Local User or enabled the Administrator Account you have yourself a little problem.

The Trust Relationship between this workstation and the Primary Domain failed

 

Here is how I normally fix the issue:

First if you don’t have a Local Account to login to, disconnect the workstation from the network by removing the network cable. Now reboot the workstation into Safe Mode and login with the Domain Username and Password that is known to you. Next enable and reset the Local Administrator Account’s password and reboot and login with the Local Administrator.

When logged in with the Local Administrator Account or Local User with Administrator Rights, make a backup of the User Folder (C:\Users\<username>).

Then remove the workstation from the domain and reboot. When the reboot is done, log back in with your Local User with Administrator Rights.

Open REGEDIT (START -> RUN -> REGEDIT) and browse to the following Registry Key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\

In the “ProfileList”, search for the profile that you can’t login to anymore and remove the Profile from the ProfileList.

Reboot the workstation and again log in with your Local User with Administrator Rights. Re-join your workstation to the domain and reboot again. Now, logon with the domain user that you were unable to logon with before.

After the new profile for the Domain User has been configured in Windows 7, restore the backup that you made of User Folder by copying all the files back to the profile (Documents, Desktop and Favourites etc.)

This always solves the error “The Trust Relationship between this workstation and the Primary Domain failed”. If you have any other solution or a quicker fix for this, please inform me.

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