Boot Options

I have an external drive that my system drive (C) is backed up to. However, when I boot my Windows 10 desktop, it seeks to boot from the external USB drive. How can I back up my C drive, without having it appear as a boot disk?

Hello, Hope everyone is doing well... this afternoon my friend I tried to play Forza Horizon 3 on Windows and after disabling and re-enabling the Teredo client the game would still not let us connect. We tried a lot of the methods online revolving around uninstalling and trying to reinstall the...