How to Fix PowerShell Blank Screen on Startup - Fix Chrome 504 Error on Windows 10: Step-by-Step Guide-Fix Windows Error 0x80070005: Access Denied
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.