Well most of it is already said. I bought the MUSIC MAKER 2024 Ultimate, but did it with the email of a friend of mine because i didnt have access to mine at the time. A couple of days later he forwarded the email sent by the company and i downloaded everything and did my sigh-in. Everything proceeded casually until i tried activating the code. "This serial number has already been used by another user." I know im using the right code and im 100% sure that my friend hasn't activated the code in my stead. Any info would be great help.