Criar usuário Administrator no Windows 10

Create a new administrator account in Windows 10
Go to Run –> lusrmgr.msc
Go to Users and select New user from Actions menu.
Type the username and password (Other details are optional)
Once the user is created, double-click the username to open account Properties.
Go to Member Of tab, click the Add button.
Type administrator in the object name field and press Check Names button.