So guys i want to install ubuntu. I have a laptop running windows 10 and i have aan empty external HDD that i want to install ubuntu to. i tried using ubuntu 18.04 LTS and minimal ubuntu 18.04 LTS but both failed. Normal one didn't even open installer for ubuntu, minimal one failed installing (couldn't download some necessary files). I am currently looking for a program like WinToUsb that can install ubuntu to my HDD from Windows and i can boot up normally. BTW i did some research and there are some programs like LiLi that you can use linux but i want to use the full linux. Is there a solution to my problems.
EDIT: The problem was caused by the .iso file. i re-downloaded it and installed it from my rooted phone using DriveDroid and it worked on second attempt. On first attempt ubuntu's file downloading didn't finish so i restarted the setup and didnt coonect to the internet and it installed normally. And the updates where made after installation.