If you think the problem is just the machine locally, try installing a new DC into the mix and transferring the roles to it once stable. If you still have the problem, then keeping the Active Directory as is may not be an option for you or you may have other issues that would show up in the event log. If you are unable to install additional computer objects, then you likely can't add user objects either. Is that right? If so, it's likely a role master issue that you're having. Restoring system state and databases etc will restore the Active Directory exactly like it is for that point in time. That might not be a good idea given what you described. Al -----Original Message----- From: Calderón Vilches Luis Daniel [mailto:Daniel@xxxxxxxxxxxx] Sent: Thursday, February 12, 2004 10:31 AM To: [ExchangeList] Subject: [exchangelist] Disaster Recovery Exchange 2K with Win2K AD http://www.MSExchange.org/ Hi everybody, This is my first time in the list, so I hope you could give me more ideas. Have the following environment: A Win2k DC which also is Exchange2K server, this is the lonely server in the organization, I call it THE server. This DC has problems with some FSMO roles with impact on the end users: things like we can not add more machines to the domain. However, the AD tools run ok, even I can add users or groups to the domain, only if I run it locally on the server, of course. I have received the server with this problems from a previous administration. The thing is: I want to reinstall the server. BUT I have this problems: - I need to preserve the AD accounts in order to associate them with their mailboxes once I have restored the exchange services. - I think that a System State backup of the server will preserve the accounts, BUT maybe also preserve the misconfigurations I described. Has anybody experienced with a similar situation?? Any suggestions will be well received. 10xs!!! Daniel ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------