a black screen appears instead of the live menu
On an ISO or an installed system?
Do you mean grub is invisible and you want it visible?
Or that desktop does not launch after login?
etc etc etc
I download, mede flash drive,I started the computer through the boot menu and selected the driver, everything seems to be fine with the manjaro logo and the screen is all black
It maybe sounds as if your graohpics are not being initialized. Possibly very new hardware?
What ISO are you using (link?) and how did you write it?
gpu 2015 driver seems to be for Linux.iso first I wrote rufus and then tried etcher nothing changed (sorry i cant send links)