I am trying to install Ubuntu 18.04.3 on dual boot along with Windows 10. My system is a legacy bios. Ubuntu does not identify that there is Windows installed on the system and thus I do not get the option to install Ubuntu alongside Windows. I've tried creating the disk partitions manually but I get the following error:
I think the problem is that Ubuntu installation opens in EFI mode (I see a black and white GRUB screen). The partition of my bootable pendrive is MBR. I've tried creating the bootable pendrive with Rufus, Yumi and Universal USB Installer without any success. Any idea what should I do to resolve this? Any help will be appreciated.