Fix Blue Screen After Windows 11 Feature Update - How to Fix Windows Security App Not Opening-Node Sass Build Error: How to Switch to Dart Sass

Updated 2026-07-28 11:23:19macos-help
Fix Blue Screen After Windows 11 Feature Update - How to Fix Windows Security App Not Opening-Node Sass Build Error: How to Switch to Dart Sass
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.