Have win 7 x64 on my 2nd computer activated with Daz tool. Used Media Creation Tool x64 to update. Google for the media creation tool. It updated my computer with windows 10. It was activated automatically. It will ask you if you want to update to windows 10 or create a windows 10 iso to load on another computer. It left my windows 7 x64 in a windows old file. I will keep my old win 7 file for about 2 weeks then delete it. I also used the Media Creation tool x64 to create a win 10 iso. I was unable to use this tool on my laptops.