Error: The type initializer for 'Microsoft.Exchange.Configuration.Tasks.ThrottlingModule`1' threw an exception.

having problems on new server so I followed instructions to remove Exchange Server 2013 Sp1 using ADSI edit p;er these instructions:

http://blog.dargel.at/2012/11/20/complete-remove-exchange-2013-using-adsiedit/

now when I re-run setup for exchange 2013 SP1 I get the error :    

"Error: The type initializer for 'Microsoft.Exchange.Configuration.Tasks.ThrottlingModule`1' threw an exception."

David Sheetz MCP