Fix Windows Defender Threat Service Stopped After Update - Fix Chrome Profile 504 Errors: Step-by-Step Troubleshooting-Fix Task Scheduler Network Error 0x80070057

Updated 2026-06-19 03:50:33office-tools
Fix Windows Defender Threat Service Stopped After Update - Fix Chrome Profile 504 Errors: Step-by-Step Troubleshooting-Fix Task Scheduler Network Error 0x80070057
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.