I am an IS engineer for a small company with a windows 2003 domain controller. All new computers we order are windows 7 machines and I am in the process of upgrading the engineering boxes to windows 7 64 bit. Each user only logs into thier machines and the occasional conference room computer. From the conference room they may remote into thier desktop. The trouble is, random windows 7 machines have Trust Relationship Failures. This has happened to laptops, desktops, and 64bit windows 7 computers. There is no new user being added to the machine in error, only the same user attempting to log back in, sometimes after they have locked the computer for lunch. Upon thier return, there is a Trust Relationship Failure. Or they could be currently logged into thier computer and attempt to remote desktop in from another computer and suddenly have the Trust Relationship Failure. In each instance I am able to remove the computer from the domain, reboot, join the domain, reboot, then all will work, but this is unacceptable in the workplace. Thanks, Doug

Hi, I suggest you remove these computers from AD and re-add them. The computer name may be not changed after you upgrade to Windows 7 64bit. However, the IDs of the computers are different. That is because when you upgrade from Windows XP to Windows 7, the old system was actually put into Windows.old folder and the Windows 7 system is clean installed. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks for the suggestion but this would only apply to the computers that are being upgraded. I am having the same difficulty on computers that have never been upgraded, mainly Dell Optiplex 780's, but this has been the same for some laptops. My problem is not isolated to just the 64bit upgrades or fresh installs from Dell, 32bit and 64bit, it is a random occurrence on various machines. The only commonality is Windows 7. Any ideas as I am at a loss? Thanks, Doug

Did you ever find a proper cause or fix for this? We are now starting to see this also. the users have been upgraded to WIndows 7 but some of the machines have been out with WIndows 7 now for 2-3 months and are now starting to give us this error. Thanks!

We are having the same issue as well. Fresh installs on Lenovo laptops will after months of use just come up saying there is no trust relationship or that it has failed. A couple of times a reboot fixed it, but usually we have to dis-join/join the domain to fix. If anyone else has some thoughts on this I would appreciate it as well! Thanks, Dan

I can report the same issue with Lenovo G530 laptops. The same one keeps having the trust failure. Removing it from and re-adding it to the domain fixes it, but it comes back a few weeks later.

Just like Microsoft to not answer. Since they don't even know.