I have an Office 365 account (Hosted MS Exchange). I deleted a few accidentally created calendars in my MS Exchange account. Everything is synced just fine (with the one remaining calendar) in Outlook 2013, my iPhone, and on the Office 365 website. However, the Windows 8 calendar app refuses to remove the old calendars. I've tried:

  • Deleting the account, and recreating it
  • Deleting the account, and recreating it with a different username (upon changing my account's username)
  • Logging out of Windows and logging back in
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