gor_lp :
dmroeder :
Maybe you didn't setup your USB properly. Download the mint IOS, then use Universal USB Installer to make a boot-able USB. Simply copying the ISO onto the USB will not work.
I used universal boot loader ad it installed everything properly on my pc
Problem isn't from usb
Itsays that it can't mount
Thank you very much this helped me
Do not use ad supported installer, use Rufus.