Greetings, I use Windows 8.1.I downloaded MediaCreationToolx64 from microsoft site.It can be used to download iso or to directly upgrade to Win 10.If I go to update from it,it would simply stay at 0% and nothing would happen.If I would like to download iso,after downloading it would say that "something happened".Tray icon still says "Reserve your Windows 10".Right now in the root of C drive, there is a folder called $Windows.~WS with .tmp and I can't delete it because it is run in "explorer.exe",it uses up 2.6gb of space.