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Command Prompt Version Mismatch: Practical Checklist - How to Fix Port Already Allocated Error in Microsoft Store-Fix Windows Defender Real-Time Protection Authentication Failed

2026-06-15 12:57:11
Command Prompt Version Mismatch: Practical Checklist - How to Fix Port Already Allocated Error in Microsoft Store-Fix Windows Defender Real-Time Protection Authentication Failed

Result check

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