After spending almost 5 hours with Adobe support chat, in three different chat sessions, I was still unable to update to Lightroom Classic. (It just wasn't appearing in my CC desktop app.) I finally decided to uninstall all of my CC apps, and then uninstall the CC desktop app. After this, I was able to go to the Adobe site and download and install Lightroom Classic (which also downloaded the CC desktop app at the same time). Now, I have Lightroom Classic, but for some reason, LR Classic is still not appearing in my list of installed programs in the Creative Cloud desktop app, so I am unable to get updates. I have tried everything I can think of, run through every troubleshooting step I could find. I'm running Windows 7 SP1, and have plenty of RAM and disk space.