I have an old laptop with obsolete vista on it. I spoke to an IT guy at work about overwriting it with windows 10 without having to buy it. He smiled and detailed how to do this but I dont remember the multi step process he described. It involved getting the download from MS , burning to a disc then installing from disc with a pirate program that possibly gives you a product key. Pretty complicated for me. Has anyone done this and can help me. He said he has done it and it works fine but I dont know when Ill see him again. THX