Fix Windows Security Service Not Starting - Task Scheduler Reset Settings Checklist-How to Fix ERR_TUNNEL_CONNECTION_FAILED in Chrome Due to Antivirus
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.
Related Software Guides
Fix Windows Activation Login Loop Not Accepting Password
Fix 'Permission Denied' and 'Windows Update Module Not Found' Errors
Fix Task Scheduler Connection Refused on Windows 10
Where to Find Microsoft Store Log Files in Windows 10
Chrome Browser Performance Optimization Checklist
Chrome Proxy Configuration Troubleshooting Guide