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Fix Windows Defender Login Loop After Update - Fix OneDrive Sync Update Error 0x8004de40-How to Resolve Task Scheduler Proxy Issues

2026-06-16 07:18:23cloud-software
Fix Windows Defender Login Loop After Update - Fix OneDrive Sync Update Error 0x8004de40-How to Resolve Task Scheduler Proxy Issues

Final checklist

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