Can not install 8.1 upgrade.

Hello. I am attempting to install the 8.1 upgrade. I get to the point in the install where it ask if I want a new install, or an upgrade. I select upgrade. Then I am at the screen where I am asked if I want to upgrade to a standard distro, or upgrade only installed packages, as well as asked to remove non-supported packages. From upgrading another computer, I know that under choice one should be three choices, something like "default, with KDE without KDE' I am not given thoise three choices. Regardless of what I select here, I am told there are no packages to upgrade. Can someone provide any assistance?