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Fix 'Git Push Rejected Non-Fast-Forward' Error - Certificate Validation Error After Windows Update-Node Version Mismatch Error Fix Guide

2026-06-17 19:47:57developer-tools
Fix 'Git Push Rejected Non-Fast-Forward' Error - Certificate Validation Error After Windows Update-Node Version Mismatch Error Fix Guide

Final checklist

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