Hegguardo,
Thank you for your response. No, my issue has not been resolved and I have not contacted Apple Support because I think it's unlikely they will help me resolve an issue on a Windows 10 PC, even if caused by the iCloud software. I did reply to i_rina asking about that but have not heard back. In the meantime, I have uninstalled/reinstalled iCloud twice and nothing changed.
All I know is that the problem I'm experiencing has been encountered by many others and the one suggested solution I found online did not work. I used REGEDIT to search for the files indicated in the solution but they were not present on my computer. I'm also uncomfortable changing register files on my own, I'm just not tech savvy enough to know what I can change without damaging my computer.