The version of SQL Server instance Shared Component does not match the version expected by the SQL Server update. The installed SQL Server product version is 10.0.1600.22, and the expected SQL Server version is 10.50.1600.1

Hi there,

Windows Update (on Server 2012 R2) shows 'Microsoft SQL Server 2008 R2 Service Pack 1 (KB2528583)' as available as an optional update. As shown by @@version, we have:

Microsoft SQL Server 2008 R2 (SP3) - 10.50.6220.0 (Intel X86)   Mar 19 2015 13:34:46   Copyright (c) Microsoft Corporation  Express Edition on Windows NT 6.3 <X64> (Build 9600: ) (WOW64) (Hypervisor)

Obviously, we don't need the SP1 update, as we already have SP3 installed.

What I'm wondering is why the SP1 update is showing up in Windows Update at all. Any ideas?