Fix PowerShell Cache Clear Permission Denied Error - Fix Windows Defender by Resetting to Default-Fix Microsoft Store Authentication Failed Due to App Permissions

Updated 2026-06-13 18:39:20macos-help
Fix PowerShell Cache Clear Permission Denied Error - Fix Windows Defender by Resetting to Default-Fix Microsoft Store Authentication Failed Due to App Permissions
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.