Problem: I have ubuntu 20.04 pre installed and wanted to install windows 10 in dual boot. But during startup couldn't find usb drive in boot menu. I have used unetbootin to bootable windows 10 iso file. Boot options image Boot from efi file image
Trial-and-error: My system by default set to uefi and legacy mode is disabled.
Also, I have disabled secure boot in bios settings and in privacy settings only administrator and password available as some of articles suggested to select usb drive there.
After searching all of tutorials mostly getting content on install ubuntu in windows system, hence, I'm totally out of options now.
Pls help me!