Unwanted User Accounts in Domain Controller

I have a Server 2012 R2 Data Center Domain Controller. When I go to Control Panel / Manage User Accounts I am seeing several users in the User Accounts box that should not be there.  

When I try to remove the user the task hangs up and does not move I have to end the task.  

Also, when I click on the user I am not given the option to change the password for this user (within the User Accounts box).  

For example; every user that is part of the Administrators/Security Group-Domain Local of the Builtin OU in listed in User Accounts box. 

Another example is 2 users from a listed Security Group-Domain Local XXXADM

Need Help

Thanks in Advance

Van R. Johnson