Fix PostgreSQL Connection Refused on Port 5432 - Reinstall Windows Security App (Microsoft Defender)-Microsoft Store Error 0x80070424 Fix Guide

Updated 2026-06-13 16:14:53cloud-software
Fix PostgreSQL Connection Refused on Port 5432 - Reinstall Windows Security App (Microsoft Defender)-Microsoft Store Error 0x80070424 Fix Guide
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.