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Fix 'PowerShell Not Recognized as Internal or External Command' - How to Fix 'Host Key Verification Failed' for GitHub-Windows Defender Group Policy Not Working – Troubleshooting Guide

2026-06-14 17:18:29
Fix 'PowerShell Not Recognized as Internal or External Command' - How to Fix 'Host Key Verification Failed' for GitHub-Windows Defender Group Policy Not Working – Troubleshooting Guide

Result check

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