zhizhu
Home / developer-tools / How to Fix Windows Defender Not Starting Automatically - Fixing Postman Request Timeout and Connection Refused Errors-Fix Windows Security DNS Error Caused by Antivirus Conflict

How to Fix Windows Defender Not Starting Automatically - Fixing Postman Request Timeout and Connection Refused Errors-Fix Windows Security DNS Error Caused by Antivirus Conflict

2026-06-13 16:19:00developer-tools
How to Fix Windows Defender Not Starting Automatically - Fixing Postman Request Timeout and Connection Refused Errors-Fix Windows Security DNS Error Caused by Antivirus Conflict

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.