what you need:
Step 1 burn the downloaded blackarch GNU/Linux live ISO into the generic USB stick or CD/DVD, this will create a live cd/usb for you to boot into.
Step 2 Go to your laptop or desktop and boot into the BlackArch GNU/Linux live cd. Step 3 When booted log in with username root and password blackarch right click on the desktop for a menu, find “terminals” and open one. Step 4