Solved: Cannot sign into OneNote 2016 on Windows 10 with Office 365 “Work account”

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Rebuilding my laptop and reinstalling Office 365, I wanted to log into OneNote and found I was stuck in a loop where:

  • it either wouldn’t add the work account but didn’t show an error
  • partially sync’d the notebook (showed section headings but then reported “Couldn’t open this section”)
  • OneNote reported sync error code 0x80073D02 (shown by clicking warning triangle in top right of OneNote)

Eventually I resolved this by adding the work account to Windows via start -> Manage your account (system settings) -> Access work or school (shown on left). This appears to add a link to my Office 365 Azure AD but more importantly I was then able to add the account to OneNote too.

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