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Fix Windows Defender Proxy Error Not Working - How to Restore BitLocker Password Prompt After Boot-Fix Windows Security 504 Gateway Timeout During Windows Update

Updated 2026-06-13 19:32:22browser-issues
Fix Windows Defender Proxy Error Not Working - How to Restore BitLocker Password Prompt After Boot-Fix Windows Security 504 Gateway Timeout During Windows Update
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.