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Home / developer-tools / Fix 'pip install no matching distribution found' for Python 3.9 - Step-by-Step Guide to Fix Defender Dependency Conflict-Windows Search Not Working? A Practical Troubleshooting Checklist

Fix 'pip install no matching distribution found' for Python 3.9 - Step-by-Step Guide to Fix Defender Dependency Conflict-Windows Search Not Working? A Practical Troubleshooting Checklist

2026-06-13 17:30:18developer-tools
Fix 'pip install no matching distribution found' for Python 3.9 - Step-by-Step Guide to Fix Defender Dependency Conflict-Windows Search Not Working? A Practical Troubleshooting Checklist

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.