FOR 64bit 1703: http://download.windowsupdate.com/d/msdownload/update/software/updt/2017/07/windows10.0-kb4034450-x64_78804edc91a628bd0d96843ae77196cc35a7da4c.cab
FOR 32bit 1703:
http://download.windowsupdate.com/c/msdownload/update/software/updt/2017/07/windows10.0-kb4034450-x86_82ccd2928001fc77e86fd6336b117cd0616c523e.cab