SQL Server performance problems due to high privileged CPU time when running Windows Server 2008 R2

It’s very rare that I tell people to blindy apply service packs or hotfixes (especially windows ones) without first analyzing where their performance problem lies, but if you are running SQL Server 2008 on Windows Server 2008 R2 (specifically this OS only) then you should absolutely ensure that you’ve installed the following fix: 976700  An…

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