User login issue following AD installation

335 pts.
Tags:
Active Directory
Active Directory Installation
Domain Controller
Local Administrators Group
I have a machine (which is not the domain controller and I have only remote access to this machine) on a domain X. I tried to promote this machine as a domain controller (domain name Y), during which this machine got disjoined from the domain X. I had logged in as a user from domain X when trying to install AD on this machine. After the installation and reboot I could no longer login as this user.

Which user should I use to login to this machine after installation?

I don't know the local administrator password, so can I create another local user (add it into the Administrator Group), and use this user to access the machine after installation, but I am completely new to setting this up.

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You will need to log in with an admin account from domain Y, yes.

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  • mshen
    You promoted the machine to a domain controller in domain Y; therefore, the machine no longer has a local administrator. You use the domain's administrator account for Y as Technochic mentioned. If you are trying to make a trust between X and Y. Use Active Directory Domains and Trusts.
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  • Richard Siddaway
    First important question - did the machine become a domain controller in domain Y? Is it part of that domain or did it get pushed out to a workgroup.
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  • Tiro
    @Technochic - Is the administrator account created automatically?How do i figure out the password for this account? @RichS - after the reboot of the machine post installation, I could see that only domain Y is listed for login, so I presume the machine did become a domain controller
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  • Tiro
    Solved, I was not aware of the Administrator password for this machine, so I created another admin user(part of the Administrators Group) and then ran the installation for domain controller and was later able to login as this user.
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