I had Ubuntu 16.04 bootable on my USB. I'm using Windows 10 and I haven't used Ubuntu as a partition but only as a USB pnp. Now I want to use 14.04 version instead. So I formatted the USB completely and again made it bootable for 14.04. Then I partitioned it on my Windows 10 and started installing this version (14.04). But, at the "Installation Type" dialog, I am confused as to which option I should choose from these 3 options:
- Erase Ubuntu 16.04 LTS and reinstall
- Erase the disk and install Ubuntu
- Something else
What should I do?