Do you mean DOS or an NT command prompt? AFAIK, most BIOS updates are done in either DOS or GUI Windows. A command prompt only NT is a bit tricky, and not very useful anyway. A DOS booting USB stick ...
First off, a little context. I'm a 30+ year Mac user and I just bought my first PC in decades. I'm no stranger to Windows and Linux, but haven't used them as a desktop OS for about 15 years. My ...