Run Windows NT's built in tape
backup program and select the Backup Local Registry check box in the Backup
Information dialog. NTBackup can not back up or restore the registry of a remote
computer - only the local system.
Rdisk copies critical portions of
these files for recovery purposes to %systemroot%\repair. Rdisk must be run with
the /s parameter to include security and sam data. On the Repair Disk Utility
screen be sure to click on the Update Repair InfoCreate Repair Disk or again you
will have a repair disk without current security and sam data.
The NT Resource Kit
utilites, regback and regrest, can be used to backup and restore the hive files
for hkey_local_machine or hkey_current_user.