when I need to change a root folder either by renaming it or moving it on the main hard drive, lightroom looses connectivity. This isn't an issue in itself but how do I remove the lightroom reference folder and upload the new folder location or name??
You tel LIghtroom to reconnect to the folder by (in Lightroom) right-clicking on the folder with the ? icon and then selecting Find Missing FOlder and then indicating the actual location and name of the folder.
You might want to consider renaming the folder in Lightroom, or better yet, develop a workflow that doesn't require renaming of folders.