I currently have windows 8.1. It works and I like it. I don't want to have problems and I don't want to change yet. But with windows 10 is only free for a little while longer (if anything hasn't changed, and if it did please tell me). Windows 8 wont support dx 12 so i will need to upgrade at some point. Is there a way to save a copy that can't be taken away when you can't upgrade for free anymore? I want to be able to upgrade down the road after the free upgrade has expired? I want to claim a copy to use later. Is there a way of doing this????