Not long ago I bought a new PC brand Lenovo. I make W7 install because some Windows programs interest me and I need them. From the Ubuntu website I downloaded 14.04. LTS and I burned on a DVD. Now it turns out that I have a mess: when I installed Ubuntu I did not think to remove an external drive and Ubuntu is distributed between internal and external hard drive. When I start the machine I get grub to choose the operating system I want to open.
I thought it would be better to remove Ubuntu and install it on a new external drive.
What do you think about? Nor do I know how to uninstall Ubuntu. Thank you.