Sometimes, when installing PowerPivot Services, you may get the message "sharepoint availability check for existing farm" FAIL Or "user account requirement for farm administrator" Even though your user is in fact a Farm Admin, and a local admin. As it turns out, the user needs sysadmin to the SQL machine as well, Shutdown the Sharepoint services, and follow the technique below to make the user a SQL admin if it is not already http://blogs.msdn.com/b/raulga/archive/2007/07/12/disaster-recovery-wh...

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