I'd like to eliminate the LR trial version before doing a clean install of LR (I have my reasons). Is there an easy way to "uninstall" Lightroom? Also, I have a small working library of photos I've been working on in the trial version. What's the best way to import them into LR keeping all the metadata and file structure?
Uninstalling the trial version probably isn't going to gain anything for you, because it is the same program. There are virtually no differences because it is the same program. But if you decide the you really must do that then go ahead. Uninstalling the trial version isn't going to do anything to your images nor to the catalog that you have been using. Once you have installed what ever it is that you want to install, you will be able to pick up right where you left off.