Exchange 2010 Installation fails with OWA Virtual Directory Error

I'm trying to install exchange 2010 on server 2008 standard sp2.  I already had it installed on here once and did a manual uninstall, so I'm assuming I missed a few directories.  I keep getting the error when trying to install it again under the Client Access Role:

Client Access Role

The following error was generated when "$error.Clear();
          $InternalOwaUrl="https://" + $RoleFqdnOrName + "/owa";
          new-OwaVirtualDirectory -DomainController $RoleDomainController -InternalUrl $InternalOwaUrl;
        " was run: "An error occurred while creating the IIS virtual directory 'IIS://' on 'DC1'.".

An error occurred while creating the IIS virtual directory 'IIS://' on 'DC1'.

Cannot create a file when that file already exists. (Exception from HRESULT: 0x800700B7)

Any ideas where this directory is?  I opened up IIS and saw the OWA directory, so I deleted it.  I tried installing again and I'm still getting the same error.  
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Dustin99352Connect With a Mentor Commented:
You can find a thorough explanation of the fix for this issue here


cmb991Author Commented:
Resolution 1 worked great! Thanks!!
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