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Fix Windows Defender Proxy Error Sync Issue - OneDrive Sync Error 0x80004005: How to Fix-Reset OneDrive Settings Without Deleting Files

Updated 2026-06-18 09:36:40office-tools
Fix Windows Defender Proxy Error Sync Issue - OneDrive Sync Error 0x80004005: How to Fix-Reset OneDrive Settings Without Deleting Files
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.