The referenced folders all got renamed to "Downloads" (long story, probably not relevant). When I click on one of renamed folders in my file manager, the correct name shows up in the path but it still shows as "Downloads" in the left window. There were several more folders that got renamed, but I was able to "Rename" all the others. Unfortunately, there doesn't appear to be a way to rename these system folders to their proper name. Does anyone know of a way to do so?
I finally found an article that worked. It mentioned something about deleting "desktop.ini", in addition to registry edits. Since the problem occurred while trying to batch add desktop.ini to folders, I thought I'd try that first. Bingo! All folders now have the proper names!