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Fix PowerShell Proxy Error 407: Authentication Required - Windows Defender High CPU Fix: Registry Edits-Command Prompt Connection Refused Error Fix

2026-06-14 07:12:58
Fix PowerShell Proxy Error 407: Authentication Required - Windows Defender High CPU Fix: Registry Edits-Command Prompt Connection Refused Error Fix

Result check

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