If you’ve seen the post on “How To Boot From A USB”, you have already properly installed Linux onto your USB and booted it. To properly follow this tutorial read this post first, “How To Boot From A USB”. This section is to show you how to install it onto your computer fully.
The reason why it’s simple is this. All you have to do is press Install Linux Mint. Once you’ve done that the window will appear as followed.
Simply follow all of the instructions and take your time. Note that this window will ask you if you want to encrypt your home file or computer. This will make it where anything you download or do needs to have a password. If you are perfectly fine with that go ahead and click it. Besides that, have fun.