Fix Outlook OAuth 2.0 Token Expired Error - Install Windows Search Offline Installer Without Internet-Disable Windows Defender Real-Time Protection Permanently Guide

Updated 2026-06-14 07:20:11developer-tools
Fix Outlook OAuth 2.0 Token Expired Error - Install Windows Search Offline Installer Without Internet-Disable Windows Defender Real-Time Protection Permanently 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.