What's danger of running dcgpofix /target:both

I've lost the contents of my DC's SYSVOL. So I intend to run dcgpofix
/target:both to reset the Domain GPO and Default DC GPO.

What specific problems might that cause? What can I do before-hand to guard
against problems?

Thanks

> What can I do before-hand to guard against problems?

You can install the GPMC and see if you can backup what's there. Although
if you've lost SYSVOL that won't be much.

You can perform a restore of the System State and then mark SYSVOL as
authorative via the Burflags registry vale, if you have a good backup.

Or, if there's another DC with a working SYSVOL, you can do a
non-authorative restore of the SYSVOL by stopping NtFrs and setting Burflags
to D2 (instead of D4 - authorative) to re-replicate the contents from a good
partner.

Here's the key:

Key - HKLM\ SYSTEM\ CurrentControlSet\ Services\ NtFrs\ Parameters\
Backup/Restore\ Process at Startup
Value - Burflags

--
Paul Williams
Microsoft MVP - Windows Server - Directory Services
http://www.msresource.net | http://forums.msresource.net