Is there a way to uninstall my Creative Cloud version of Lightroom Classic and reinstall a new version that has no connections to older folder, images, presets, etc. Install a fresh new copy of the software.
You don't need to install a fresh copy of the application for that. What you need to do is start with a brand new catalog. If you do not want to have old presets with the new catalog either, then check the option in the preferences to store the presets with the catalog.