This is interesting.  In my experience any off-domain (i.e. workgroup) Win 7 installation which is taking Windows Updates (required, not optional) gets the GWX update.  The relevant Update is KB 3035583.<p>&quot;To install this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1. Or, install Windows 7 SP1&quot; [0]<p>Apparently it also does not apply to Enterprise Edition.
[0]<p>[0] <a href="https:&#x2F;&#x2F;support.microsoft.com&#x2F;en-ca&#x2F;kb&#x2F;3035583" rel="nofollow">https:&#x2F;&#x2F;support.microsoft.com&#x2F;en-ca&#x2F;kb&#x2F;3035583</a>