Since the deadline for getting the free upgrade has 'officially' passed you should not have any problem. I say 'officially' as it is still available just not through Windows Updates.
Still it is always best to be safe so I recommend that in download and install Never10. It will prevent any OS upgrade and will also remove any Windows 10 setup files if already downloaded.
https://www.grc.com/never10.htmAfter running Never10 and disabling the ability to upgrade the OS go ahead and change Windows Updates back to your preferred settings.