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Fix Windows Update Port Conflicts During Setup - Resolve Windows Defender 504: Step-by-Step-Troubleshoot Windows Update 0x80073712

2026-06-13 13:59:39
Fix Windows Update Port Conflicts During Setup - Resolve Windows Defender 504: Step-by-Step-Troubleshoot Windows Update 0x80073712

Result check

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

Next references

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