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Fix Chrome Connection Timeout and Sync Issues - Windows Defender Start Error 0x800704ec Guide-Chrome Proxy Not Working? Try These Fixes

Updated 2026-06-14 05:58:20developer-tools
Fix Chrome Connection Timeout and Sync Issues - Windows Defender Start Error 0x800704ec Guide-Chrome Proxy Not Working? Try These Fixes
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.