The provided statistics stream is corrupt, when running UPDATE Statistics
It's a bug.  You need CU11 for Server 2008 R2 SP2
http://support.microsoft.com/kb/2829845

VSTS bug #: 1790001
FIX: &quot;The provided statistics stream is corrupt&quot; when you run the
&quot;UPDATE STATISTICS&quot; statement against a table in SQL Server 2008 R2 or
SQL Server 2012