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 ...

I have a W98 Compaq laptop. While booting, it displays the following:<BR><BR>The following files are missing or corrupt:<BR><BR>command.com<BR><BR>then...it displays:<BR><BR>bad command or file ...

Booting the computer system involves loading an operating system from the various boot devices like drivers, network, and USB drives when the computer is switched on. Once the startup sequence ...