這個基本算是WINDOW 7 SP2了吧，雖然官方不這麼稱呼
微軟官方下載位置：http://catalog.update.microsoft.com/v7/site/Search.aspx?q=3125574
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KB3125574 32位元版本（Update for Windows 7）
http://download.windowsupdate.com/d/msdownload/update/software/updt/2016/05/windows6.1-kb3125574-v4-x86_ba1ff5537312561795cc04db0b02fbb0a74b2cbd.msu
KB3125574 64位元版本（Update for Windows 7 64bit & Update for Windows Server 2008 R2 64bit）
http://download.windowsupdate.com/d/msdownload/update/software/updt/2016/05/windows6.1-kb3125574-v4-x64_2dafb1d203c8964239af3048b5dd4b1264cd93b9.msu
安裝上述更新前需要先更新下面KB3020369的更新
下載3020369：
x86: http://download.windowsupdate.com/d/msdownload/update/software/updt/2015/04/windows6.1-kb3020369-x86_82e168117c23f7c479a97ee96c82af788d07452e.msu
x64:http://download.windowsupdate.com/d/msdownload/update/software/updt/2015/04/windows6.1-kb3020369-x64_5393066469758e619f21731fc31ff2d109595445.msu