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      Office 365 - Outlook can't log in after enabling MFA

      Outlook will not accept the password after enabling MFA.

      • Log on as admin to EAC (Exchange Admin Centre, via portal.office.com)
      • In EAC go to Hybrid > Setup and click the bottom Configure button to download the Exchange Online Remote PowerShell Module for multi-factor authentication
      • Connect to Exchange Online via PowerShell module you just downloaded
      • Execute this command: Get-OrganizationConfig | Format-Table Name,OAuth* -Auto
      • If it is not enabled, enable it: Set-OrganizationConfig -OAuth2ClientProfileEnabled $true
      • Exit PowerShell
      • Wait 60 minutes for Exchange Online servers to replicate and sync the changes you just made, and in the meantime ensure that your Windows 10 and Office 2016 are fully updated with the latest updates
      • Launch Credential Manager, click Windows Credentials and Remove anything that mentions Office, Outlook or Exchange