Domi

You don’t have to use the terminal, if you installed regular Fedora with GNOME, you can just search for “Sound” and it should come up with this:

If you installed Fedora KDE you can search for “Sound” as well and it should look like this:

Do the audio settings show your onboard audio device?

Did you manage to install Linux to your second drive?

Do you mean your Windows boot partition?

Windows does not support installing the boot partition on a different drive out of the box. Unless you modified your Windows installation, the drive where Windows is installed is also where the Windows boot manager lives.

The biggest risk with installing with the drive connected is accidentally installing the Linux boot partition over the Windows boot partition, hence the usual recommendation to disconnect the drive just to be safe.

You’re gonna have to provide some more details on your setup and what is working/not working though.