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Fix Windows Defender Corrupted Cache Error - Troubleshoot Error 0x80070005 in Windows Update-How to Resolve Windows Security Proxy Error from Antivirus

Updated 2026-06-13 16:09:02browser-issues
Fix Windows Defender Corrupted Cache Error - Troubleshoot Error 0x80070005 in Windows Update-How to Resolve Windows Security Proxy Error from Antivirus
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.