Hello, I know this isn't the correct forum for this, but I am hoping to get help here as in the correct forum I am not getting anyone to respond. I installed Exchange 2010 RC with no problems according to the setup log. I then tried to configure it via the EMC and remote shell, but it was saying that it wasn't installed correctly. So I went to uninstall the program but that has led to problems. First I was unable to uninstall the Mailbox, Client Access and Hub Transport all at the same time. So I uninstalled the Hub and Client Access with no problems, then restarted the server. I then tried to uninstall the Mailbox role and management tools but am unable to uninstall it. It is providing the following error: Summary: 9 item(s). 1 succeeded, 1 failed.Elapsed time: 00:00:02 Preparing SetupCompleted Elapsed Time: 00:00:02 Mailbox RoleFailed Error:The following error was generated when "$error.Clear(); if ($RoleRoles) { & $RoleBinPath\ServiceControl.ps1 EnableServices $RoleRoles.Replace('Role','').Split(',') }" was run: "AuthorizationManager check failed.". AuthorizationManager check failed. Elapsed Time: 00:00:00I have then tried to reinstall everything, but it will not let me do that since it says it needs to be uninstalled first. I do have the setup logs that I can send, any help would be appreciated. How do I get beyond this to uninstall it so that I can move forward?Michael R. Mastro II

This is in the lab correct? If you cant remove it gracefully, you may want to consider deleting the server via adsiedit.mscI only suggest this because its a lab environment since RC isnt supported in production unless you are in a supported test program with Microsoft.

Yes it is a lab, but I was trying to remove it gracefully due to other services setup on the server already. Sometimes it is just a pain reinstalling all the software. Well I am going through regedit right now and reformating that drive to clear exchange from the server, hopefully that will allow me to reinstall it. If not I guess remove the server from the domain and redo the server setup. Though knowing how to remove it in a real world situation when this comes up would be useful. Michael R. Mastro II

You'll have to remove the server from the configuration container under the Exchange objects, not just from the domain, so that's why adsiedit is a good tool there. I dont think there is as yet a supported way to remove 2010 other then running the setup program, which was the case in 2007 as well.