Fix Windows Security Blank Screen by Resetting the App - How to Break the Microsoft Store Login Loop-Troubleshooting Windows Update Stuck at 0% Download
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.