Fix OneDrive Sync Authentication Failed Error on Windows 11 - OneDrive CPU Spike Troubleshooting Checklist-Troubleshoot Windows Search Index Hanging

Updated 2026-06-14 07:18:32developer-tools
Fix OneDrive Sync Authentication Failed Error on Windows 11 - OneDrive CPU Spike Troubleshooting Checklist-Troubleshoot Windows Search Index Hanging
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.