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Outlook Shared Mailbox Migration: Setup and Troubleshooting - Resolve 'Windows Defender Firewall Has Blocked' Notification-Fix Windows Defender Sync Issues Across Devices

2026-06-13 21:59:17developer-tools
Outlook Shared Mailbox Migration: Setup and Troubleshooting - Resolve 'Windows Defender Firewall Has Blocked' Notification-Fix Windows Defender Sync Issues Across Devices

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.

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