Microsoft keeps releasing updated versions of the Windows Updates that install GWX (Get Windows Ten [X]) and you have to be eternally vigilant with regard to Windows Updates if you're going to try to keep GWX from installing.
A far easier option, and one that "the geek world" is loving, is GWX Control Panel, available on the developer's webpage here. He has been quite diligent in paying attention to which Windows Updates are trying to install GWX as time goes by and either blocking those if they're not yet installed or removing any GWX material from those that have. I recommend this highly as an ongoing solution until Microsoft ends the free upgrade period (with attendant nags) on July 31, 2016. Brian
