I'l attempting to upgrade from Windows 7 Pro N to Windows 10 today, and keep running into the same issue in the Upgrade Assistant. Each time, it downloads 10 and tries to start the installation process, failing at 0% every time and giving me error code 80070057. Googling the problem has only turned up ways to fix this update issue on Windows 10 machines, and nothing for 7. The one potential solution I did find on the Microsoft forums, gave me a separate error message, "The update is not applicable to your computer." Is there a solution to this issue, or am I stuck on 7 (not that Win 7 is bad or anything 😛)?