Ugh just found out that you cant use a "rescue disk" to reinstall windows server 2008 IF you cant log in, basically from the log in screen there is no way to "shut down gracefully" the server.
If you power cycle to get to boot......
- unclean shut down therefor rescue disk asks you to restart cleanly.....
Which of course you cant because you've been locked out of your server and cant log in. :( !!!!!
1/ Always have an emergency login account for your server with admin status
2/ Add a red shut down button on windows server 2008 via a gui setting (or via registry hack here)