I am unable to log onto a laptop on a network. The computer is a HP Pavilion 6 running Windows 7. Doesn't matter whose login and password I use it comes up with the same error: The trust relationship between this workstation and the primary domain failed. I work at a school and wonder if one of the children have changed a setting. I try placing the CD in the drive to see if I could boot up off the system CD and restall Windows 7 and then network the computer again. But how do I get the computer to recognise the drive and allow me to restall, as I can't get pass the login stage??

Hi, I would like to know if the computer is in the domain environment? If so, logon as a local administrator, take the PC out of the domain, delete the workstation object from the domain if it remains. Then, restart the PC and re-join the domain. This KB also applies to Windows 7 http://support.microsoft.com/kb/162797 Here is a similar issue. http://social.technet.microsoft.com/Forums/en/itprovistanetworking/thread/8f614ca0-0a83-4ebc-a936-d8b669ef52e9 If you want to use installation CD to reinstall Windows, you can set BIOS boot menu as boot from CD. It will read the CD content before login stage. Best Regards, Niki 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.