I meant, when I set to boot from usb (in bios), it doesn't work and windows starts normally, so i have to go to windows settings > update and security > recovery > advanced setup and here i choose "use a device". Its the same as in this vide:
I'm currently trying to install Linux mint on Lenovo IdeaPad z500. I seemingly can only enter BIOS and boot the usb from Windows settings. When I try to boot the usb, black screen happens. None of the methods I found fixed it.