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Fix PowerShell Proxy Error 407: Authentication Required - How to Fix 'Port Already in Use' Error on Windows-Chrome Profile Transfer Guide for New Mac

2026-06-14 08:06:11
Fix PowerShell Proxy Error 407: Authentication Required - How to Fix 'Port Already in Use' Error on Windows-Chrome Profile Transfer Guide for New Mac

Result check

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