Windows Update Service Troubleshooting Checklist - Windows 10 Certificate Authority Invalid Error Fix-Git SSL Certificate Problem: Fix 'Unable to Get Local Issuer Certificate'
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.