Recently I've been trying to install Ubuntu alongside my Windows 10 installation. I've already shrinked my C: partition by 200GB, so there's plety of space. However, after mounting the Ubuntu iso on my USB drive (Using GPT mode for UEFI), it never shows up under the devices to boot from.
If I mount the USB again using the correct mode for the legacy BIOS and change the BIOS to legacy mode, I can boot from the USB without issues, but I won't be able to dual boot, since Windows itself is installed in UEFI mode.
What can I do?