Microsoft released [re-released (??)] several Windows Updates on Tuesday 8/4, in the optional (or recommended) category, the point of which appear to be encouraging updating one's O/S from Win7 or Win8/8.1 to Win 10 :
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Compatibility update for upgrading Windows 7 https://support.microsoft.com/en-us/kb/2952664
Compatibility update for Windows 7 RTM https://support.microsoft.com/en-us/kb/2977759
Windows Update Client for Windows 7 and Windows Server 2008 R2: August 2015 https://support.microsoft.com/en-us/kb/3075851
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Compatibility update for Windows 8.1 and Windows 8 https://support.microsoft.com/en-us/kb/2976978
Windows Update Client for Windows 8.1 and Windows Server 2012 R2: August 2015 https://support.microsoft.com/en-us/kb/3075853