You cannot resume setup by performing the action "BuildtoBuildUpgrade"

I recently made 2 important decisions regarding my test environment:



  1. Move all the VMs to Hyper-V;
  2. Install Exchange 2007 SP1.

Moving to Hyper-V is not that hard:



  1. Remove the VM Additions;
  2. Create a new Hyper-V VM using the previous VHD.

My problems started when installing Exchange Server 2007 Service Pack 1. After I kicked the SP1 Setup, I got a warning that I should first install .NET Framework 2.0 SP1 (how could I disregard my own recommendations?), so I stopped the setup process.


After installing the required update, I resumed the SP1 setup, but now I got the following error:


Setup previously failed while performing the action “install”. You cannot resume setup by performing the action “BuildtoBuildUpgrade”

Microsoft Knowledge Article KB947281 describes this problem and has a resolution for it. Unfortunately the article is a little bit incomplete. It tells you to delete the Watermark and Action entries from any of these Registry keys:


  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\ClientAccessRole
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\HubTransportRole
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\MailboxRole

But for my particular case the Watermark and Action entries were located at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\UnifiedMessagingRole.


So, the right solution should be to check for those entries at any of these keys:


  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\ClientAccessRole
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\HubTransportRole
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\MailboxRole
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\UnifiedMessagingRole
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\ClusteredMailboxServer

  • [UPDATE]
    The KB Article has been corrected!







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