Fix Windows Security App Error 0x80070424 - Windows 11 Assistant Stuck: Disk Space Troubleshooting-Firefox Secure Connection Failed Only on WiFi: Fixes

Updated 2026-07-28 12:15:11developer-tools
Fix Windows Security App Error 0x80070424 - Windows 11 Assistant Stuck: Disk Space Troubleshooting-Firefox Secure Connection Failed Only on WiFi: Fixes
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.