Ubuntu 20.04 installation problems

I am trying to install Ubuntu 20.04 LTS (alongside windows and/or otherwise) (specifications are given below) but I couldn't.

• I have tried clean installing windows and then installing Ubuntu 20.04.

• I have deleted windows and only installed ubuntu.

• I have installed 19.10 and then tried to update it to ubuntu 20.04. All of the above did not work.

I have made bootable USB using Rufus (tried MBR and GPT both). Windows 10 installation is no problem. But I need Ubuntu for work purposes. Also, not that when this loading screen appears, it stays that way for hours and when I try to hard shut down and then start again, the same screen appears, not the setup menu which is weird. My bios settings are set to UEFI + Legacy.

Also, I tried 18.04 LTS and that doesn't work either and neither does 20.04 LTS. 19.10 was working fine with a few minor glitches but that's not a long-term solution right?

Computer specifications:

After clicking "START" in Rufus, choose "Write in DD Image Mode" (it will prompt you).

A live Linux image doesn't always want to boot from a USB if it is written in ISO Image Mode, at least in my experience.