We had a drive die. it had the NTDS log on it, all the other NTDS info is on the C: drive. Our backup system will not reconize the dead machine so it won't let us recover from the tape. we have installed a new drive and are trying to get the active directory running again. does anyone know of a method to do so without a backup of the log files and without having to dcpromo and repromot the system. MORE info. also this is not the only domain controller in the domain. Can you take a copy of the NDTS subdirectory. from a one of the other domain controllers and use them on the new dirve to make this work.