How to install Ubuntu on my computer, so I can choose which OS to load your computer?

Guys I downloaded Ubuntu and want to install it, first time tried to install but I failed, I uninstalled Ubuntu and downloaded the new ISO, there's a flash drive but no disk, you can read that to install Ubuntu onto a flash drive and then install it on your computer. Asked to throw the article where it is all done.
September 19th 19 at 00:29
2 answers
September 19th 19 at 00:31
Shaking the image from under Windows and record on a flash drive using UNetbootin, first Windows then put Ubuntu, nothing nestrada zagrosek will offer the OS to boot at start)
here in detail
September 19th 19 at 00:33
Keep all valuable with hard to another carrier!(the most important point, then it's easier:)
Read here

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