STOP: c00002e2 Directory Services could not start because of the following error: a device attached to the system is not functioning.
Error status: 0xc0000001.
Please shutdown this system and reboot into Directory Services Restore Mode, check the event log for more detailed information.
The cause may be a corrupted transaction log file header for NTDS. To confirm this, boot into Directory Services Restore Mode (DSRM), run NTDSUTIL.EXE, and attempt to activate as follows:
Type activate instance ntds
Type files
Observe an error similar to:
Error: Could not initialize the Jet engine: Jet Error -501. Failed to open DIT for AD DS/LDS instance NTDS. Error -2147418113
Also, check the Event Viewer for NTDS-related errors complaining of C:\Windows\NTDS\edb*.log file checksum errors or header corruption.
Rename the *.log files in C:\Windows\NTDS and reboot normally.