Nasty error. First time I've seen a serious Active Directory error in years.
"When you start your domain controller, the screen may go blank, and you may receive the following error message:
LSASS.EXE - System Error, security accounts manager initialization failed because of the following error:
Directory Services cannot start. Error status 0xc00002e1.
Please click OK to shutdown this system and reboot into directory services restore mode, check the event log for more detailed information."