To stop and restart AD DS
Click Start, click Administrative Tools, and then click Computer Management.

Double-click Services and Applications, and then click Services.

To stop AD DS, in the details pane, right-click Active Directory Domain Services, and then click Stop.

In Stop Other Services, review the list of dependent services that will also stop when you stop AD DS, and then click Yes.

If you right-click Active Directory Domain Services, and then click Properties, you see a list of the other services that depend on AD DS to function and another list of services that AD DS depends on to function. All dependent services stop before AD DS stops.

Right-click Active Directory Domain Services again, and then click Start.

Dependent services start before AD DS starts.

Use the following procedure to query whether AD DS is running or stopped on a domain controller.