Standard local user accounts must not exist on a system in a domain.

From Windows 10 Security Technical Implementation Guide

Associated with: CCI-000366

SV-77857r2_rule Standard local user accounts must not exist on a system in a domain.

Vulnerability discussion

To minimize potential points of attack, local user accounts, other than built-in accounts and local administrator accounts, must not exist on a workstation in a domain. Users must log onto workstations in a domain with their domain accounts.

Check content

Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Users. If local users other than the accounts listed below exist on a workstation in a domain, this is a finding. Built-in Administrator account (Disabled) Built-in Guest account (Disabled) Built-in DefaultAccount (Disabled) Built-in defaultuser0 (Disabled) Built-in WDAGUtilityAccount (Disabled) Local administrator account(s) All of the built-in accounts may not exist on a system, depending on the Windows 10 version.

Fix text

Limit local user accounts on domain-joined systems. Remove any unauthorized local accounts.

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