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Fix Python venv Not Activating in CMD - How to Resolve Windows Defender Error 0x800704ec-Fix Explorer Restart Loop by Disabling Shell Extensions

Updated 2026-07-28 16:50:10office-tools
Fix Python venv Not Activating in CMD - How to Resolve Windows Defender Error 0x800704ec-Fix Explorer Restart Loop by Disabling Shell Extensions
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.

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