I am trying to install SQL Server 2008 R2 Express on Windows Server 2003 and I get an error "failed to initialize 0x84B10001".
Googling got me the following link - http://kb.sagesoftwareonline.com/app/answers/detail/a_id/27156/~/error%3A-%22configuration-system-failed-to-initialize-0x84b10001%22-when-attempting
However, my machine.config didn't contain the serviceModel entry at all - so this doesn't seem relevant to me. Any Idea what else I can try?