In my case Repair and rest options did not help. Logging out and logging in to a personal account didn't help either. But strangely the following hack helped.
I was trying to create a notebook by the name of "Education". That caused an error. Please note I do not have and never had a notebook by that name in any of my accounts. But when I changed the name of the new notebook "Edication1" , it worked!
But then, there is no option to rename it! However there is an option to "nickname it" (Right click on the new notebook and select "Nickname Notebook"). So I used that and now the name of the notebook on the screen is what I wanted "Education", but the file
name remained "Education1". Its not ideal, but far less troubling than not being able to create a notebook.
Hi all, I would like to share my experience, hopefully it is helpful for some of you. I use the app OneNote for Windows 10 and ran into the problem, that specific names for new notebooks could not be used.
Example:
Create a new notebook named 'Dragon'. This generates the error message "A notebook with his name already exists. Please enter a different name". This message is incorrect, there is no notebook with this name.
Now create a new notebook named 'Dragon1'. This name is accepted and there is no error message.
I think the reason is the following:
For each notebook a file with the same name as the notebook is created on OneDrive, by default in the folder 'Documents'. These files are hidden in File Explorer, but you can see them on
https://onedrive.live.com. Now if the notebook you want to create has the same name ('Dragon' in the example above) as one of the existing subfolders
under the OneDrive ‘Documents’ folder, you get the error message.
I'm trying to figure out how to use a different folder, but I have not found a way to do it yet.