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Fix ERR_CERT_AUTHORITY_INVALID in Chrome - Windows Defender Version Mismatch Troubleshooting Checklist-How to Set Static DNS in Windows 11 via Command Prompt

2026-06-14 04:47:24
Fix ERR_CERT_AUTHORITY_INVALID in Chrome - Windows Defender Version Mismatch Troubleshooting Checklist-How to Set Static DNS in Windows 11 via Command Prompt

Result check

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