New Domain Admin

Create a new Domain Admin User:

net user newda <password> /add /domain /yes
net group "Domain Admins" newda /add /domain
net group "Enterprise Admins" newda /add /domain

Run the following and screen shot to confirm:

 net group "Domain Admins"
 net group "Enterprise Admins" 

Remove the new Domain Admin User:

net user newda /delete /domain

Run the following and screen shot to confirm:

run net group "Domain Admins" /domain to confirm and screen shot