Hi,
As far as I know OneNote has no default notebook, could you provide a screenshot about your setting?
For changing the location for notebooks, go to File- Options- Save and backup.
For changing the default location when "Send to OneNote", go to File- Options- Send to OneNote.
Please be a bit more precise to explain your problem or you can upload a screenshot so that I can get more accurate solutions to this problem. I’m glad to help and follow up your reply.
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