just installed a DNS server on one of our servers, as i only wanted a single name resolution for our office.

after i restarted, i cannot logon to the system anymore , it mentions " the system could not log you on make sure username and domain are correct"

i was not aware that when installing a DNS server it automatically created or becomes related to a domain.

can anyone help to either revert back or log into the local user instead?

System is Windows 2003 server Enterprise Edition