I know how to slipstream the Win10 x64 install.wim into the x86 ISO files. But the current process, which is an in-place upgrade from Win7SP1 or Win8.1 to Win10, requires launching the old Windows, then triggering SETUP.EXE on the upgrade (folder, DVD or USB). But the process I know, slipping x64 wim into the x86 wim, leaves us with a USB root SETUP.EXE which is x86 and WILL NOT RUN an in-place upgrade on an (existing) x64 system. Do you have a solution, to get an x64 SETUP.EXE onto the slipstreamed All-in-One? Please be patient with advanced amateur, perhaps using more words instead of shorthand you might use with pros. Thanks!