Fix Windows Defender Sync Issues Between Devices - Resolve OneDrive Permission Denied and Throttling Issues-Outlook Sending Limit Reached: How to Fix and Avoid

Updated 2026-06-13 21:43:12windows-fixes
Fix Windows Defender Sync Issues Between Devices - Resolve OneDrive Permission Denied and Throttling Issues-Outlook Sending Limit Reached: How to Fix and Avoid
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.