I have an Exchange server that is a failover server (using Doubletake software) for my main Exchange server. The problem I am having is that the failover server ran out of room in its drive so I need to uninstall Exchange, add more drives, reconfigure the RAID and reinstall the OS and Exchange again. When I tried uninstalling Exchange, I got the following error when the wizzard was running the Mailbox Role Prerequisite portion: Uninstall cannot continue. Database 'Public Folder Database': The critical property 'PublicFolderHierarchy' is missing in the PublicFolderDatabase object 'SERVER\Second Storage Group\Public Folder Database'. Is there a way for me to accomplish this tast (and not corrupt the database in my main Exchange server or cut any access to my users?)??? This server really contains no active mailboxes and other than the duplication purposes, I am not sure why it has its own Public Folder DB... Please let me know if you have any suggestions. Thanks in advance, AllieTS_IT

Hi, I’m not familiar how Doubletake software works in the current system. If the current Exchange server is in a normal environment, you could use ADSIedit to delete the public folder database manually and then uninstall the Exchange. Thanks, Elvis