Windows Update Service Troubleshooting Checklist - Fix ERR_CERT_AUTHORITY_INVALID on Localhost-Fix Windows Explorer Restarting After Update

Updated 2026-07-28 12:23:06browser-issues
Windows Update Service Troubleshooting Checklist - Fix ERR_CERT_AUTHORITY_INVALID on Localhost-Fix Windows Explorer Restarting After Update
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.