Cannot join computer to a new domain

Claude Constantinescu
Claude Constantinescu used Ask the Experts™
on
I have a computer at work that belonged to a different domain and when I try to join it to our domain the option is grayed out and a message says, "The identification of the computer cannot change because the workstation servise is not running. Open the services snap-in to insure it is running ans set its startup type as "automatic". When I try to do this I get a message that "Windows could not start the workstation service. The system cannot find the file specified."

Do you know how to proceed?

Thanks,
Claude
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JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
I have a computer at work that belonged to a different domain and ….   <-- You need to go that domain and disjoin from it first.
Shreedhar EtteTechnical Manager
Top Expert 2010

Commented:
Compare this registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanWorkstation with a system where Workstation is started.
Business Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018
Commented:
Here is a Microsoft Document that should allow you to force disjoin from a domain

https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.management/remove-computer?view=powershell-5.1

You need to old domain credentials to use this.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Thanks and I trust all is resolved now.
Olgierd UngehojerSenior Network Administrator

Commented:
Check if hostname of the computer what you trying to join to new domain does not exist already on the network.
If computer is registered in dns  check if you Ip address in dns is the same what you have on the computer network card.

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