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Jupyter Kernel Not Starting in VS Code: Quick Fixes - How to Fix ERR_SSL_PROTOCOL_ERROR Certificate Problem-Windows Defender Access Denied Fix

Updated 2026-06-13 14:37:13windows-fixes
Jupyter Kernel Not Starting in VS Code: Quick Fixes - How to Fix ERR_SSL_PROTOCOL_ERROR Certificate Problem-Windows Defender Access Denied Fix
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.