The Windows server software comes with a set of default accounts. Only the administrator account has administrative privileges.
Note If an administrator adds a domain account to the local administrators group, the domain user may access and administer the server. However, the administrator cannot use the Change Administrator Password page to change his domain account password. This page can only be used to change the local administrator's account password.
When you change the administrator password, there is no explicit confirmation page. However, the password is successfully changed if no error message appears after you have submitted the change.
Note You cannot change the Web UI administrator password if you are logged on as a domain user because it is outside the scope of the Windows server software Web UI to make changes to domain user accounts, which are stored on the domain controller, rather than on the server itself.
In this context, administrator relates to the user account that is a member of the local administrators group and is used by a current user to log on. It does not refer to the default administrator account, called administrator.
If you receive the error message The password cannot be changed for this domain account or The account name cannot be changed for this domain account when trying to change the administrator password or account name, you are logged on as a domain user. You must be logged on as the server administrator to change the administrator password.
To change the administrator account password for the server
Note The new administrator password must conform to any password complexity rules in effect for the domain to which the server belongs.
To change the administrator account name for the server
For more information about constructing the initial server configuration, see Configuring Network Attached Storage or Configuring a Web Server.