Here goes...windows crashed and i had to do new installation. i still have exchange directories i.e. log file, db. So is bes to try to reassociate exchange with existing db (or is even possible) or is best restore from backup. My preference would be to reinstall exchange and use db that is already there. thoughts? thx jaysen

Hi,Did it also was the domain controller if not use the setup.com /m:recoverserver this will look in the AD which roles the server had previously and reinstalls the roles. Then create the databases with the same name as they had previously and follow the procedure in the following Technet article to recover the db's:http://technet.microsoft.com/en-us/library/aa998340.aspxRegards,Johanblog: www.johanveldhuis.nl

Hi,You can also read this article, I think it is helpful. How to Recover a Lost Exchange Serverhttp://technet.microsoft.com/en-us/library/bb123496.aspxFrank Wang

There are certain things you need to take care of such as resetting the computer account in AD. Please take a look @ below article. It has nice step by step article about the same Recovering an Exchange 2007 Server using the RecoverServer switch http://www.msexchange.org/tutorials/Recovering-Exchange-2007-Server-RecoverServer-switch.html Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

To have a successful Recovery, correct backups must be taken for Mailbox/CAS/HUb/UCAdded to all posts, The below article describes the best.... Backing Up Exchange 2007 Using Windows 2003 Backup Restoring Exchange 2007 Storage Groups and Databases Using Windows 2003 Backup Repairing a Corrupt or Damaged Exchange 2007 Database Using Eseutil Restoring Mailbox Data Using the Recovery Storage Group Feature Recovering an Exchange 2007 Server Using the RecoverServer Switch Recovering an Exchange 2007 Cluster Using the RecoverCMS Switch Restoring Mailbox Databases Using the Improved Database Portability Featurehttp://www.msexchange.org/tutorials/Configuring-Exchange-Server-2007-Preview-Chapter9-Disaster-Recovery-Exchange-Server-2007.html