The Windows Server 2025 "Deny log on as a service" user right must be configured to include no accounts or groups (blank) on domain controllers.

Inappropriately granting user rights provides system, administrative, and other high-level capabilities. The "Deny log on as a service" user right defines accounts that are denied logon as a service. Incorrect configurations could prevent services from starting and result in a denial of service.

This applies to domain controllers. A separate version applies to 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 are defined for the "Deny log on as a service" user right, this is a finding. 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 are granted the "SeDenyServiceLogonRight" user right, this is a finding.

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> Deny log on as a service to include no entries (blank).