Fix PowerShell Connection Timeout via Registry - Troubleshooting 0x80070057 Update Error-Resolve Windows Defender Not Opening (Error 404)
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.