After doing a full system state restore from backup you “may” find that the server will boot and then blue screen.
Pressing F8 and setting to not reboot after the blue screen will let you see if it is error C00002E2 Directory Services Could Not Start. And you need to get into directory services maintenance mode.
To do that press F8 and select it (or choose it from the boot menu if you have enabled it previously).
Once you are in DSM you will need to see what is wrong, following the instructions from this article http://itswapshop.com/tutorial/how-fix-c00002e2-directory-services-could-not-start-blue-screen may fix it. Deleting the log files seems to work, but why the backup/restore leaves it in this state is anyones guess.
