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Fix Outlook Authentication Failed Error 0x80048820 - OneDrive Sync Permission Denied on Mac – Fix-Task Scheduler 502 Error Troubleshooting Steps

2026-06-14 07:17:15
Fix Outlook Authentication Failed Error 0x80048820 - OneDrive Sync Permission Denied on Mac – Fix-Task Scheduler 502 Error Troubleshooting Steps

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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