Fix 'Outlook Data File Cannot Be Accessed' Error in Outlook 365 - Resolve Outlook Port Already Allocated on Windows 11-How to Fix Windows Terminal Rate Limit Error

Updated 2026-06-14 11:43:06windows-fixes
Fix 'Outlook Data File Cannot Be Accessed' Error in Outlook 365 - Resolve Outlook Port Already Allocated on Windows 11-How to Fix Windows Terminal Rate Limit Error
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.