troubleshooting Question

Exchange Server 2010 - Setup /PrepareSchema Fails

Avatar of jm00rman
jm00rman asked on
ExchangeActive Directory
7 Comments2 Solutions708 ViewsLast Modified:
I am installing an exchange server 2010 on Windows server 2008 R2. When attempting to run setup /PrepareSchema, the following error occurs:

No key presses were detected.  Setup will continue.
Preparing Exchange Setup

    Copying Setup Files                           COMPLETED

No server roles will be installed

Performing Microsoft Exchange Server Prerequisite Check

    Organization Checks                                       COMPLETED

Configuring Microsoft Exchange Server

    Extending Active Directory schema                         FAILED
     The following error was generated when "$error.Clear();
          if ($RoleDomain -ne $null)
          initialize-ExchangeLegacyPermissions -Domain $RoleDomain -DomainContro
ller $RoleDomainController;
          initialize-ExchangeLegacyPermissions -AllDomains:$true -DomainControll
er $RoleDomainController;
        " was run: "Object reference not set to an instance of an object.".

The Exchange Server setup operation didn't complete. More details can be found
in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder.

Exchange Server setup encountered an error.

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 2 Answers and 7 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 2 Answers and 7 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros