I've been checking around on multiple sites about how much Windows 11 is. I need to activate multiple computers and I don't want to have to buy them directly from Microsoft because that's a rip off. From what I've read there is a difference between OEM keys and Retail keys. Multiple sources are saying to avoid OEM keys as they often get deactivated. They aren't intended for distribution and are generated by the manufactures of computers that come with Windows already installed. Retail keys however, are sourced from Microsoft as legitimate retail copies of the software intended for consumers to install onto their personal computers. I've seen a lot of people saying to avoid "Grey Market" keys but the arguments are always based on some moral qualms which I don't really have any moral qualms against not sending even more money to huge corporations by buying directly from them.