The Windows Server 2025 "Add workstations to domain" user right must only be assigned to the Administrators group on domain controllers.

Inappropriately granting user rights provides system, administrative, and other high-level capabilities. Accounts with the "Add workstations to domain" right may add computers to a domain. This could result in unapproved or incorrectly configured systems being added to a domain.

This applies to domain controllers. It is not applicable for other systems. Verify the effective setting in Local Group Policy Editor. Run gpedit.msc. Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment. If any accounts or groups other than the following are granted the "Add workstations to domain" right, this is a finding: - Administrators. For server core installations, run the following command: Secedit /Export /Areas User_Rights /cfg c:\path\filename.txt Review the text file. If any SIDs other than the following are granted the "SeMachineAccountPrivilege" user right, this is a finding. S-1-5-32-544 (Administrators)

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> Add workstations to domain to include only the following accounts or groups: - Administrators.