Exchange 2010 prerequisites check errors

Question

Summary: 6 item(s). 5 succeeded, 1 failed.
Elapsed time: 00:00:33
Configuring Prerequisites
Failed
Error:
The following error was generated when "$error.Clear();
          if($RoleInstallWindowsComponents)
            # Install any Windows Roles or Features required for the Management Tools role
            Install-WindowsComponent -ShortNameForRole "AdminTools" -ADToolsNeeded $RoleADToolsNeeded
        " was run: "The system cannot find the file specified".
The system cannot find the file specified
Click here for help... http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=14.1.218.11&e=ms.exch.err.Ex88D115&l=0&cl=cp
Elapsed Time: 00:00:02
Organization Prerequisites
Completed
Elapsed Time: 00:00:13
Languages Prerequisites
Completed
Elapsed Time: 00:00:02
Hub Transport Role Prerequisites
Completed
Warning:
Installing Exchange Server on a domain controller will elevate the privileges for Exchange Trusted Subsystem to domain administrators.
Elapsed Time: 00:00:05
Client Access Role Prerequisites
Completed
Warning:
Installing Exchange Server on a domain controller will elevate the privileges for Exchange Trusted Subsystem to domain administrators.
Elapsed Time: 00:00:04
Mailbox Role Prerequisites
Completed
Warning:
If Microsoft Outlook 2003 is in use, you should replicate the free/busy folder on this server to every other free/busy server in the organization. This step should be performed once Setup completes.
Warning:
Installing Exchange Server on a domain controller will elevate the privileges for Exchange Trusted Subsystem to domain administrators.
Elapsed Time: 00:00:05
Any suggestions. I believe it has something to do with missing AD roles and features.
Server OS: Windows Server 2012 Standard

Answer 1

Martina is correct.
And you may also want to re-evaluate installing onto the DC. 
http://blogs.technet.com/b/rmilne/archive/2013/07/03/exchange-on-a-dc.aspx
Cheers,
Rhoderick
Microsoft Senior Exchange PFE
Blog:
http://blogs.technet.com/rmilne 
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