KB 2756920 causes several errors like Search scope may not function and user profile service may break causing your SharePoint site go down, so make sure your server did not update this article. I thought to inform you guys as a suggestion as it took me a three days to know why my SharePoint site got down unexpectedly.
closed as not a real question by SPDoctor♦ Jan 14 at 19:32
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1) (preferred) Install Server 2008 R2 SP1
2) Install KB2637518 and then the MS13-004 update