Fix 'pip install no matching distribution found' for Python 3.9 - How to Fix VS Code Terminal 'Permission Denied' in PowerShell-How to Force Close Windows Update Stuck at 100%

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.