Computer failed to join domain from its current workgroup ‘WORKGROUP’ with following error message: The system cannot open the device or file specified.

When you use PowerShell to join a Windows server to the domain make sure the -OUPath is correct.

Computer failed to join domain from its current workgroup ‘WORKGROUP’ with following error message: The system cannot open the device or file specified.

In this case we wanted to place the joined computers in the Computers folder, so no OUPath specification is necessary. The solution was to omit the -OUPath option from the command:

Add-Computer -DomainName $domain -Credential $credential -Server $domaincontroller -ComputerName $old_computername -NewName $new_computername

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