A Microsoft file hosting and synchronization service.
I'm thinking that the one that should be deleted is the one that was inserted into the registry earliest in time since the problem occurred for me after I uninstalled and then reinstalled OneDrive. I assume the second installation installed a second entry in the registry. So, I need to delete the earliest entry in time. Then the question, how do tell which entry occurred earliest in time. Can I tell by the sorting of the CLSIDs?
I am no expert in this and do not mess with the registry
I have two One Drive accounts because I started with the “free” OneDrive and when I subscribed to MS365 OneDrive was part of the package.
Very poof handling on the part of Microsoft. I expect suppliers to do some checks and balancing before installing new purchased software.