+ 0 Votes Active Directory - Adding Computer bonillajose 5 years ago Unfortunately late I answer this, may be that help some one else. You must to delete the account of the old pc from Users and computers console also because when you try to join the domain active directory cannot create a duplicated name for the new SID. Then, sometimes after you add the new computer, AD doesn't allow users login to the pc on the domain as result of this issue, you need to remove the pc from the domain and join it again. + 0 Votes ADSI, ADFIND or DSQuery yasser_khan 2 years ago You may be able to view the SIDs assigned to the machine by using adsiedit or adfind or dsquery and verify if the SID is now different. adsiedit may require conversion of the objectSID attribute. + 0 Votes This might help you, or it might not..... Peconet Tietokoneet-217038187993258194678069903632 5 years ago Joining your vista PC to your domain Is the same as a XP machine check the one of the following solution. Solution 1 Start?>Control Panel and Select system and Maintenance. Click the System section.In the ?Computer name, domain, workgroup settings? section, click the ?Change settings? link. If you?re prompted by the User Account Control module to continue, click Continue. In the Computer Name tab of the properties, click the Change button. In the ?Member of? section, select Domain and enter the name of the domain and click OK. You?ll be prompted for an account with rights to join the Computer to the domain. Enter the details and click OK. Click OK to the welcome dialog box.Click OK to the notice that the machine will be rebooted. Click Close to the dialog box Click Restart Now to the restart prompt. Once the reboot is complete, the machine will be part of your domain. Solution 2 Use Netdom.exe to add the computer to the domain. netdom join ComputerName /domain:DomainName/userd:UserName /passwordd:UserPassword Yes, there is a letter ?d? after user and password in the netdom command. Please post back if you have anymore problems or questions. + 0 Votes ADSI, ADFIND or DSQuery yasser_khan 2 years ago You may be able to view the SIDs assigned to the machine by using adsiedit or adfind or dsquery and verify if the SID is now different. adsiedit may require conversion of the objectSID attribute.