When ADUC opens, it automatically tries to connect to the domain your Windows 10 PC is joined to.
is a primary Microsoft Management Console (MMC) snap-in used to manage routine Active Directory (AD) tasks in a Windows environment. While it is traditionally found on domain controllers, IT administrators frequently install it on Windows 10 workstations to manage users, groups, and computer accounts remotely without needing to log directly into a server. Key Functions of ADUC aduc windows 10
However, there’s a critical catch: Windows 10 cannot act as a Domain Controller. You must have access to an existing Active Directory domain controller on your network. When ADUC opens, it automatically tries to connect