How to Join a domain

To join a machine to a domain, follow the instructions shown below.
1. Assume the domain to which this machine going to be joined is "myrootdns2003.com".
2. Open mycomputer, right click on it and select properties.
3. In mycomputer properties, go to Computer Name tab, click on "change" button.
4. Enter domain name "myrootdns2003.com" in to which this machine will join in Compute Name Changes dialog and click ok.

5. Enter user name and password which has privileges to join in target domain and click ok.
6. Thus domain join success pop up dialog comes up.Relevant Posts:
Join a target domain on command line