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 ...
To boot Linux from a USB drive on a modern Windows PC, there are a few security-related things you'll have to do first. If you're running Windows 11 Pro, you'll need to turn off the BitLocker ...