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Fix Microsoft Store Proxy Error: Cannot Connect - Fix Windows Defender 404 Error in Command Prompt-Task Scheduler Configuration Checklist for Automated Backups

Updated 2026-06-14 04:24:16developer-tools
Fix Microsoft Store Proxy Error: Cannot Connect - Fix Windows Defender 404 Error in Command Prompt-Task Scheduler Configuration Checklist for Automated Backups
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.