Fix OneDrive Sync Error 0x80070194 on Windows - Teams Guest Access Denied: Troubleshooting Guide-How to Renew Expired Outlook Token

Updated 2026-06-14 00:09:09developer-tools
Fix OneDrive Sync Error 0x80070194 on Windows - Teams Guest Access Denied: Troubleshooting Guide-How to Renew Expired Outlook Token
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.