Fix Windows Terminal Connection Refused (Error 0x80072746) - Windows Defender Won't Turn On: 0x80070422 Troubleshooting-Resolve ERR_PROXY_CONNECTION_FAILED in Chrome

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.