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2012R2
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March, 2017 Security Only Quality Update for Windows Server 2012 R2 (KB4012213)
http://download.windowsupdate.com/c/msdownload/update/software/secu/2017/02/windows8.1-kb4012213-x64_5b24b9ca5a123a844ed793e0f2be974148520349.msu
March, 2017 Security Monthly Quality Rollup for Windows Server 2012 R2 (KB4012216)
http://download.windowsupdate.com/d/msdownload/update/software/secu/2017/03/windows8.1-kb4012216-x64_cd5e0a62e602176f0078778548796e2d47cfa15b.msu