I wanted to get Windows 10 Pro but on the Microsoft Store It is about $100 so I found a website that I heard was legit that sold Windows 10 Pro activation keys for cheap and when I saw the website it seemed legit so I made the purchase. When the money transferred the gave me the Key and gave instructions on how to install it but when I did I got the “The product key you entered didn’t work. Check the product key and try again, or enter a different one. (0xc004f050)” error. Now I did Email them just now but it will probably take a while for a response so I am asking reddit.