Fix Windows Security Sync Issues Between Devices - Remote Desktop Error 0x104 Troubleshooting Guide-Windows Defender Access Denied Error: Windows 11 Fix Guide

Updated 2026-06-13 20:22:39macos-help
Fix Windows Security Sync Issues Between Devices - Remote Desktop Error 0x104 Troubleshooting Guide-Windows Defender Access Denied Error: Windows 11 Fix Guide
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.