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GitHub Actions Workflow Fails With No Error Message - Fix 0x80070490 Update Error in Windows Defender-Resolve Port Already in Use Errors from Windows Defender

2026-06-13 14:15:18
GitHub Actions Workflow Fails With No Error Message - Fix 0x80070490 Update Error in Windows Defender-Resolve Port Already in Use Errors from Windows Defender

Result check

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