A: It can sometimes be difficult to download the right version of a cumulative update. You need to pay very close attention if you're actually downloading the update for SQL Server 2008, SQL Server 2008 R2, or SQL Server 2008 R2 SP1.

The correct download location is at the Microsoft webpage "Cumulative update package 4 for SQL Server 2008 R2 Service Pack 1." 

 

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