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Fix Windows Defender SSL Certificate Sync Errors - How to Fix Microsoft Store Connection Refused on Windows 11-Check if a Port Is Already Allocated Using Command Prompt

2026-06-13 18:27:40
Fix Windows Defender SSL Certificate Sync Errors - How to Fix Microsoft Store Connection Refused on Windows 11-Check if a Port Is Already Allocated Using Command Prompt

Result check

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