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Fix Windows Defender Real-Time Protection Not Starting - Resolve Missing File Error 0x80070002 in Windows Update-Ubuntu Python venv Not Activating: Troubleshooting Guide

Updated 2026-07-28 06:07:59cli-errors
Fix Windows Defender Real-Time Protection Not Starting - Resolve Missing File Error 0x80070002 in Windows Update-Ubuntu Python venv Not Activating: Troubleshooting Guide
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.